fix: improve robustness of search focus keyboard shortcut

- Update FontSelector to prevent '/' shortcut from triggering when another input is focused
- Ensure consistent behavior for '/' focus across Figlet and Units tools

components/figlet/FontSelector.tsx

@@ -45,8 +45,14 @@ export function FontSelector({
     const handleKeyDown = (e: KeyboardEvent) => {
       // "/" to focus search
       if (e.key === '/' && !e.ctrlKey && !e.metaKey) {
-        e.preventDefault();
-        searchInputRef.current?.focus();
+        const activeElement = document.activeElement;
+        if (
+          activeElement?.tagName !== 'INPUT' &&
+          activeElement?.tagName !== 'TEXTAREA'
+        ) {
+          e.preventDefault();
+          searchInputRef.current?.focus();
+        }
       }
       // "Esc" to clear search
       if (e.key === 'Escape' && searchQuery) {