feat: add humorous tip for new line shortcut in Gemini CLI (#5666)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Jacob Richman <jacob314@gmail.com>

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

@@ -135,6 +135,7 @@ export const WITTY_LOADING_PHRASES = [
   "It's not a bug, it's a feature... of this loading screen.",
   'Have you tried turning it off and on again? (The loading screen, not me.)',
   'Constructing additional pylons...',
+  'New line? That’s Ctrl+J.',
 ];
 
 export const PHRASE_CHANGE_INTERVAL_MS = 15000;