feat: launch Gemini 3 in Gemini CLI 🚀🚀🚀 (in main) (#13287)

Co-authored-by: Adam Weidman <65992621+adamfweidman@users.noreply.github.com>
Co-authored-by: Sehoon Shon <sshon@google.com>
Co-authored-by: Adib234 <30782825+Adib234@users.noreply.github.com>
Co-authored-by: Sandy Tao <sandytao520@icloud.com>
Co-authored-by: Abhi <43648792+abhipatel12@users.noreply.github.com>
Co-authored-by: Aishanee Shah <aishaneeshah@gmail.com>
Co-authored-by: gemini-cli-robot <gemini-cli-robot@google.com>
Co-authored-by: Gal Zahavi <38544478+galz10@users.noreply.github.com>
Co-authored-by: Jacob Richman <jacob314@gmail.com>
Co-authored-by: joshualitt <joshualitt@google.com>
Co-authored-by: Jenna Inouye <jinouye@google.com>

packages/cli/src/ui/hooks/slashCommandProcessor.ts

@@ -77,6 +77,7 @@ export const useSlashCommandProcessor = (
   actions: SlashCommandProcessorActions,
   extensionsUpdateState: Map<string, ExtensionUpdateStatus>,
   isConfigInitialized: boolean,
+  setBannerVisible: (visible: boolean) => void,
   setCustomDialog: (dialog: React.ReactNode | null) => void,
 ) => {
   const session = useSessionStats();
@@ -203,6 +204,7 @@ export const useSlashCommandProcessor = (
             console.clear();
           }
           refreshStatic();
+          setBannerVisible(false);
         },
         loadHistory,
         setDebugMessage: actions.setDebugMessage,
@@ -241,6 +243,7 @@ export const useSlashCommandProcessor = (
       sessionShellAllowlist,
       reloadCommands,
       extensionsUpdateState,
+      setBannerVisible,
       setCustomDialog,
     ],
   );