feat: improving suggestion dropdown design

src/renderer/src/components/search-dropdown/search-dropdown.scss

@@ -24,7 +24,8 @@
     display: flex;
     align-items: center;
     justify-content: space-between;
-    padding: 8px 12px 4px;
+    padding: 8px 12px 8px;
+    margin-bottom: 4px;
   }
 
   &__section-title {
@@ -35,19 +36,15 @@
     letter-spacing: 0.5px;
   }
 
-  &__clear-button {
+  &__clear-text-button {
     color: globals.$muted-color;
     cursor: pointer;
-    padding: 4px;
-    border-radius: 4px;
-    transition: all ease 0.2s;
-    display: flex;
-    align-items: center;
-    justify-content: center;
+    padding: 2px 6px;
+    font-size: 11px;
+    transition: color ease 0.2s;
 
     &:hover {
       color: #dadbe1;
-      background-color: rgba(255, 255, 255, 0.1);
     }
   }
 
@@ -74,18 +71,11 @@
     transform: translateY(-50%);
     color: globals.$muted-color;
     padding: 4px;
-    border-radius: 4px;
     opacity: 0;
-    transition: all ease 0.15s;
+    transition: opacity ease 0.15s;
     display: flex;
     align-items: center;
     justify-content: center;
-    background-color: transparent;
-
-    &:hover {
-      color: #ff5555;
-      background-color: rgba(255, 85, 85, 0.1);
-    }
   }
 
   &__item {

src/renderer/src/components/search-dropdown/search-dropdown.tsx

@@ -1,11 +1,6 @@
 import { useEffect, useRef, useCallback, useState } from "react";
 import { createPortal } from "react-dom";
-import {
-  ClockIcon,
-  SearchIcon,
-  TrashIcon,
-  XIcon,
-} from "@primer/octicons-react";
+import { ClockIcon, SearchIcon, XIcon } from "@primer/octicons-react";
 import cn from "classnames";
 import { useTranslation } from "react-i18next";
 import type { SearchHistoryEntry } from "@renderer/hooks/use-search-history";
@@ -144,11 +139,10 @@ export function SearchDropdown({
             </span>
             <button
               type="button"
-              className="search-dropdown__clear-button"
+              className="search-dropdown__clear-text-button"
               onClick={onClearHistory}
-              title={t("clear_history")}
             >
-              <TrashIcon size={14} />
+              clear
             </button>
           </div>
           <ul className="search-dropdown__list">

src/renderer/src/hooks/use-search-suggestions.ts

@@ -19,6 +19,7 @@ export function useSearchSuggestions(
   const [isLoading, setIsLoading] = useState(false);
   const library = useAppSelector((state) => state.library.value);
   const abortControllerRef = useRef<AbortController | null>(null);
+  const cacheRef = useRef<Map<string, SearchSuggestion[]>>(new Map());
 
   const getLibrarySuggestions = useCallback(
     (searchQuery: string, limit: number = 3): SearchSuggestion[] => {
@@ -67,6 +68,15 @@ export function useSearchSuggestions(
         return;
       }
 
+      const cacheKey = `${searchQuery.toLowerCase()}_${limit}`;
+      const cachedResults = cacheRef.current.get(cacheKey);
+
+      if (cachedResults) {
+        setSuggestions(cachedResults);
+        setIsLoading(false);
+        return;
+      }
+
       abortControllerRef.current?.abort();
       const abortController = new AbortController();
       abortControllerRef.current = abortController;
@@ -98,6 +108,7 @@ export function useSearchSuggestions(
           })
         );
 
+        cacheRef.current.set(cacheKey, catalogueSuggestions);
         setSuggestions(catalogueSuggestions);
       } catch (error) {
         if (!abortController.signal.aborted) {