feat: add multi-model support

app/typing.ts

@@ -1 +1,15 @@
 export type Updater<T> = (updater: (value: T) => void) => void;
+
+export enum SubmitKey {
+  Enter = "Enter",
+  CtrlEnter = "Ctrl + Enter",
+  ShiftEnter = "Shift + Enter",
+  AltEnter = "Alt + Enter",
+  MetaEnter = "Meta + Enter",
+}
+
+export enum Theme {
+  Auto = "auto",
+  Dark = "dark",
+  Light = "light",
+}