chore: Update ThemePage component to include install and uninstall buttons

src/components/theme-page.tsx

@@ -32,7 +32,12 @@ export default function ThemePage({ theme }: { theme: ZenTheme }) {
           className="mt-4 hidden"
           id="install-theme"
           zen-theme-id={theme.id}
-        >Install Theme</Button>
+        >Install Theme 🎉</Button>
+        <Button
+          className="mt-4"
+          id="install-theme-uninstall"
+          zen-theme-id={theme.id}
+        >Uninstall Theme</Button>
         <p id="install-theme-error" className="text-muted-foreground text-sm mt-2">You need to have Zen Browser installed to install this theme. <a href="/download" className="text-blue-500">Download now!</a></p>
       </div>
       <hr className="block my-4 lg:hidden" />