Update 23 pages: Standardize "Requires X" pattern (#4608)

* Standardize requirement wording to "Requires X" pattern

Normalize requirement terminology across all documentation files:
- Signup/Sign-Up Required → Requires Sign-Up
- X VPN Required → Requires X VPN
- X Required → Requires X (Google Login, Library Card, Discord, etc.)

Standardizing phrasing to "Requires X" for improved consistency, scannability, active voice, and easier maintenance.

* fix: grammar

* fix: apply 'Requires X' format after merge with upstream

* fix: standardized leftovers

---------

Co-authored-by: nbats <44333466+nbats@users.noreply.github.com>

docs/image-tools.md

@@ -106,7 +106,7 @@
 * ⭐ **[Mosh](https://moshpro.app/)**, [glitch2](https://akx.github.io/glitch2/) or [GlitchyImage](https://glitchyimage.com/) - Glitch Images
 * [PhotoFunia](https://photofunia.com/), [effect.app](https://effect.app/), [⁠Tooooools](https://tooooools.app/) or [Image Mage](https://imagemageage.github.io/) - Photo Effects / Filters
 * [Palettum](https://palettum.com/) - Add Custom Color Palettes to Images & GIFs / [GitHub](https://github.com/arrowpc/palettum) 
-* [InColor](https://www.myheritage.com/incolor) - B&W Image Colorization / Sign-Up Required
+* [InColor](https://www.myheritage.com/incolor) - B&W Image Colorization / Requires Sign-Up
 * [⁠Dual Shades](https://dual-shades.anmolagrawal.dev/) - Generate B&W Images w/ Colorized Subjects
 * [PhotoJoiner](https://www.photojoiner.com/) - Collage Maker
 * [⁠shabzefilters](https://shabzefilters.netlify.app/) - ASCII, Dot, Braille, Block, Line, etc 
@@ -465,7 +465,7 @@
 * [Buzzly](https://buzzly.art/) - User-Made Art / Fanart
 * [Artfol](https://www.artfol.app/) - User-Made Art / Fanart
 * [Cara](https://cara.app/) - User-Made Art / Fanart
-* [InkBlot](https://inkblot.art/) - User-Made Art / Fanart / Sign-Up Required
+* [InkBlot](https://inkblot.art/) - User-Made Art / Fanart / Requires Sign-Up
 * [⁠Zerochan](https://www.zerochan.net/) - Japanese Fanart / [Discord](https://discord.gg/HkGgX6Qs3N)
 * [⁠PidgiWiki](https://www.pidgi.net/) - Video Game PNGs / [Discord](https://discord.gg/Eg9QahqpXf)
 * [Safebooru](https://safebooru.org/) or [TBIB](https://tbib.org/) - Image Boorus
@@ -515,10 +515,10 @@
 * ⭐ **[Thingiverse](https://www.thingiverse.com/)** - Share / Download 3D Models
 * ⭐ **[Printables](https://www.printables.com/)** - Find Practical 3D Models Ready for Printing
 * [Clara.io](https://clara.io/library), [PolyHaven](https://polyhaven.com/), [CadNav](https://www.cadnav.com/), [Open3dModel](https://open3dmodel.com/) or [Archibase](https://archibase.co/) - Misc 3D Models
-* [Sketchfab](https://sketchfab.com/) / [Ripper](https://github.com/gamedev44/Fabulous-Ripper), [⁠Tripo Studio](https://studio.tripo3d.ai/) (temp mail), [3DArchive](https://t.me/ArchiveStl), [cgtrader](https://www.cgtrader.com/free-3d-models) or [3dsky](https://3dsky.org/) - Misc 3D Models / Sign-Up Required
-* [Cults](https://cults3d.com/), [Thangs](https://thangs.com/), [MakerWorld](https://makerworld.com/) or [Pinshape](https://pinshape.com/) - Printable 3D Models / Sign-Up Required
+* [Sketchfab](https://sketchfab.com/) / [Ripper](https://github.com/gamedev44/Fabulous-Ripper), [⁠Tripo Studio](https://studio.tripo3d.ai/) (temp mail), [3DArchive](https://t.me/ArchiveStl), [cgtrader](https://www.cgtrader.com/free-3d-models) or [3dsky](https://3dsky.org/) - Misc 3D Models / Requires Sign-Up
+* [Cults](https://cults3d.com/), [Thangs](https://thangs.com/), [MakerWorld](https://makerworld.com/) or [Pinshape](https://pinshape.com/) - Printable 3D Models / Requires Sign-Up
 * [STLFinder](https://www.stlfinder.com/) - Multi-Site Search
-* [3D Warehouse](https://3dwarehouse.sketchup.com/) - 3D Models Compatible with SketchUp / Sign-Up Required
+* [3D Warehouse](https://3dwarehouse.sketchup.com/) - 3D Models Compatible with SketchUp / Requires Sign-Up
 * [Pack 3D Models](https://p3dm.ru/) - Vehicle / Character 3D Models
 * [Figurosity](https://figurosity.com/) - Human 3D Models
 * [Handz](https://www.handz.design/) - 3D Hand Models
@@ -782,14 +782,14 @@
 
 * ⭐ **[Postimages](https://postimages.org/)** - 32MB / Forever
 * [Rimgo](https://rimgo.codeberg.page/), [2](https://codeberg.org/rimgo/instances) - Imgur Frontend
-* [tixte](https://tixte.com/) - 15GB Storage Total / Forever / Sign-Up Required
-* [lookimg](https://lookimg.com/) - 20MB / Forever / Sign-Up Required
-* [Horizon](https://horizon.pics/) - 75MB (500MB Storage) / Forever / Sign-Up Required
+* [tixte](https://tixte.com/) - 15GB Storage Total / Forever / Requires Sign-Up
+* [lookimg](https://lookimg.com/) - 20MB / Forever / Requires Sign-Up
+* [Horizon](https://horizon.pics/) - 75MB (500MB Storage) / Forever / Requires Sign-Up
 * [imgchest](https://imgchest.com/) - 10MB (30MB with Account) / Forever
 * [Imgur](https://imgur.com/) - 20MB Image / 200MB Animated / Forever / [Upload Limits](https://help.imgur.com/hc/en-us/articles/26511665959579-What-files-can-I-upload-Is-there-a-size-limit) / [Direct Link Grabber](https://imgur.plen.io/)
 * [Google Photos](https://photos.google.com/) - 200MB / 15GB Cloud / Forever
 * [Ente](https://ente.io/) - Unlimited / 10GB Cloud
-* [Piczel](https://piczel.tv/) - 10MB / Forever / Sign-Up Required
+* [Piczel](https://piczel.tv/) - 10MB / Forever / Requires Sign-Up
 * [TurboImageHost](https://www.turboimagehost.com/) - 20MB / Forever
 * [Google Photos Toolkit](https://github.com/xob0t/Google-Photos-Toolkit) - Manage / Delete Google Photos
 * [Google Takeout](https://takeout.google.com/) - Export from Google Photos / [Script](https://github.com/Xentraxx/GooglePhotosTakeoutHelper)
@@ -802,7 +802,7 @@
 
 * ⭐ **[ImgBB](https://imgbb.com/)** - 32MB / Forever
 * ⭐ **[Catbox](https://catbox.moe/)** - 200MB / Forever / [Proxy](https://fatbox.moe/) / [ShareX Config](https://files.catbox.moe/w4ztcf.sxcu)
-* [pixelfed](https://pixelfed.org/) - Decentralized Image Sharing Social Network / Sign-Up Required / [Tools](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/social-media#wiki_.25B7_pixelfed_tools) / [Android](https://gitlab.shinice.net/pixeldroid/PixelDroid) / [GitHub](https://github.com/pixelfed/pixelfed)
+* [pixelfed](https://pixelfed.org/) - Decentralized Image Sharing Social Network / Requires Sign-Up / [Tools](https://www.reddit.com/r/FREEMEDIAHECKYEAH/wiki/social-media#wiki_.25B7_pixelfed_tools) / [Android](https://gitlab.shinice.net/pixeldroid/PixelDroid) / [GitHub](https://github.com/pixelfed/pixelfed)
 * [sxcu.net](https://sxcu.net/) - Free ShareX Uploader Service / 95MB / N/A
 * [FreeImage.Host](https://freeimage.host/) - 64MB (128MB W/ Account) / Forever
 * [imgbox](https://imgbox.com/) - 10MB / Forever