Add two new frontend flags

Release-Notes: skip
Google-Bug-Id: b/335150296
Change-Id: I974419d32327cfb955a40dd81e30123eeed6c407
diff --git a/polygerrit-ui/app/services/flags/flags.ts b/polygerrit-ui/app/services/flags/flags.ts
index b59d7a8b3..ee1d813 100644
--- a/polygerrit-ui/app/services/flags/flags.ts
+++ b/polygerrit-ui/app/services/flags/flags.ts
@@ -22,4 +22,6 @@
   ML_SUGGESTED_EDIT = 'UiFeature__ml_suggested_edit',
   ML_SUGGESTED_EDIT_V2 = 'UiFeature__ml_suggested_edit_v2',
   REVISION_PARENTS_DATA = 'UiFeature__revision_parents_data',
+  COMMENT_AUTOCOMPLETION = 'UiFeature__comment_autocompletion_enabled',
+  GR_TEXTAREA = 'UiFeature__gr_textarea_enabled',
 }