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

app/src/settings_view/settings_file_footer.rs

@@ -7,7 +7,6 @@
 //!   `Workspace::render_settings_error_banner`) when the settings file has an
 //!   error *and* the user has dismissed the workspace banner.
 //! * Otherwise, a plain bordered "Open settings file" button.
-use pathfinder_color::ColorU;
 use galaxy_core::ui::color::coloru_with_opacity;
 use galaxy_core::ui::theme::Fill;
 use galaxyui::elements::{
@@ -18,6 +17,7 @@ use galaxyui::elements::{
 };
 use galaxyui::fonts::{FamilyId, Properties, Weight};
 use galaxyui::platform::Cursor;
+use pathfinder_color::ColorU;
 
 use crate::appearance::Appearance;
 use crate::settings::SettingsFileError;