Synchronize modal commit editor with panel editor (#26068)

Release Notes:

- Git Beta: Synchronized selections between the modal editor and the
panel editor
- Git Beta: Allow opening the commit modal even if we're unable to
commit.

crates/git_ui/src/git_panel.rs

@@ -8,6 +8,7 @@ use crate::{
 use crate::{picker_prompt, project_diff, ProjectDiff};
 use db::kvp::KEY_VALUE_STORE;
 use editor::commit_tooltip::CommitTooltip;
+
 use editor::{
     scroll::ScrollbarAutoHide, Editor, EditorElement, EditorMode, EditorSettings, MultiBuffer,
     ShowScrollbar,
@@ -190,7 +191,7 @@ pub struct GitPanel {
     remote_operation_id: u32,
     pending_remote_operations: RemoteOperations,
     pub(crate) active_repository: Option<Entity<Repository>>,
-    commit_editor: Entity<Editor>,
+    pub(crate) commit_editor: Entity<Editor>,
     conflicted_count: usize,
     conflicted_staged_count: usize,
     current_modifiers: Modifiers,
@@ -1934,7 +1935,7 @@ impl GitPanel {
         })
     }
 
-    pub fn can_open_commit_editor(&self) -> bool {
+    pub fn can_commit(&self) -> bool {
         (self.has_staged_changes() || self.has_tracked_changes()) && !self.has_unstaged_conflicts()
     }
 
@@ -2013,7 +2014,6 @@ impl GitPanel {
         cx: &mut Context<Self>,
     ) -> Option<impl IntoElement> {
         let active_repository = self.active_repository.clone()?;
-        let can_open_commit_editor = self.can_open_commit_editor();
         let (can_commit, tooltip) = self.configure_commit_button(cx);
         let project = self.project.clone().read(cx);
         let panel_editor_style = panel_editor_style(true, window, cx);
@@ -2108,7 +2108,6 @@ impl GitPanel {
                                     .icon_size(IconSize::Small)
                                     .style(ButtonStyle::Transparent)
                                     .width(expand_button_size.into())
-                                    .disabled(!can_open_commit_editor)
                                     .on_click(cx.listener({
                                         move |_, _, window, cx| {
                                             window.dispatch_action(