✨ add gitmoji support for commit messages (#165)

Add gitmoji toggle in Git settings to enable emoji support
Show Add gitmoji button in commit section when feature is enabled
Display gitmoji picker dialog with searchable emoji list

packages/ui/src/lib/api/types.ts

@@ -385,6 +385,7 @@ export interface SettingsPayload {
   autoDeleteEnabled?: boolean;
   autoDeleteAfterDays?: number;
   queueModeEnabled?: boolean;
+  gitmojiEnabled?: boolean;
 
   [key: string]: unknown;
 }