feat: custom prompt support

src/lib/stores/index.ts

@@ -6,10 +6,13 @@ export const user = writable(undefined);
 
 // Frontend
 export const theme = writable('dark');
+
 export const chatId = writable('');
+
 export const chats = writable([]);
 export const models = writable([]);
 export const modelfiles = writable([]);
+export const prompts = writable([]);
 
 export const settings = writable({});
 export const showSettings = writable(false);