Add searching feature

frontend/src/styles.css

@@ -402,7 +402,7 @@ body {
   background: none;
   border: none;
   color: #495057;
-  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
   font-size: 0.9rem;
   word-break: break-all;
   flex: 1;
@@ -419,7 +419,8 @@ body {
   flex-shrink: 0;
 }
 
-.copy-btn, .open-btn {
+.copy-btn,
+.open-btn {
   background: #3498db;
   color: white;
   border: none;
@@ -435,7 +436,8 @@ body {
   justify-content: center;
 }
 
-.copy-btn:hover, .open-btn:hover {
+.copy-btn:hover,
+.open-btn:hover {
   background: #2980b9;
   transform: scale(1.05);
 }
@@ -497,26 +499,26 @@ body {
   .rss-endpoints {
     padding: 0.5rem;
   }
-  
+
   .rss-endpoints-grid {
     grid-template-columns: 1fr;
   }
-  
+
   .endpoint-url {
     flex-direction: column;
     align-items: stretch;
     gap: 0.75rem;
   }
-  
+
   .endpoint-url code {
     min-width: unset;
     text-align: center;
   }
-  
+
   .endpoint-actions {
     justify-content: center;
   }
-  
+
   .usage-cards {
     grid-template-columns: 1fr;
   }