Fix cursor focus and selection in input box, add AWS env var warning box, and remove AWS Bedrock login banner

app/src/code_review/diff_selector.rs

@@ -1,6 +1,5 @@
 //! Trigger button + [`CodeReviewDiffMenu`] overlay for picking the diff
 //! target in the code review header.
-use pathfinder_geometry::vector::vec2f;
 use galaxy_core::ui::theme::Fill;
 use galaxyui::elements::{
     ChildAnchor, ChildView, ConstrainedBox, Container, CornerRadius, CrossAxisAlignment, Element,
@@ -17,6 +16,7 @@ use galaxyui::{
     id, AppContext, Entity, FocusContext, SingletonEntity as _, TypedActionView, View, ViewContext,
     ViewHandle,
 };
+use pathfinder_geometry::vector::vec2f;
 
 use crate::appearance::Appearance;
 use crate::code_review::diff_menu::{CodeReviewDiffMenu, CodeReviewDiffMenuEvent};