Git: Fix Linux bindings (#25486)

- Tooltip with binding wasn't showing up
- Missing Linux bindings
- Commit modal wasn't opening when binding was pressed

Release Notes:

- N/A

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

assets/keymaps/default-linux.json

@@ -368,7 +368,12 @@
       "ctrl-\\": "pane::SplitRight",
       "ctrl-k v": "markdown::OpenPreviewToTheSide",
       "ctrl-shift-v": "markdown::OpenPreview",
-      "ctrl-alt-shift-c": "editor::DisplayCursorNames"
+      "ctrl-alt-shift-c": "editor::DisplayCursorNames",
+      "ctrl-alt-y": "git::ToggleStaged",
+      "alt-y": "git::StageAndNext",
+      "alt-shift-y": "git::UnstageAndNext",
+      "alt-.": "editor::GoToHunk",
+      "alt-,": "editor::GoToPrevHunk"
     }
   },
   {
@@ -705,12 +710,6 @@
       "space": "project_panel::Open"
     }
   },
-  {
-    "context": "GitPanel && !CommitEditor",
-    "bindings": {
-      "escape": "git_panel::Close"
-    }
-  },
   {
     "context": "GitPanel && ChangesList",
     "bindings": {
@@ -722,16 +721,24 @@
       "ctrl-shift-space": "git::UnstageAll",
       "tab": "git_panel::FocusEditor",
       "shift-tab": "git_panel::FocusEditor",
-      "escape": "git_panel::ToggleFocus"
+      "escape": "git_panel::ToggleFocus",
+      "ctrl-enter": "git::Commit"
+    }
+  },
+  {
+    "context": "GitCommit > Editor",
+    "bindings": {
+      "enter": "editor::Newline",
+      "ctrl-enter": "git::Commit"
     }
   },
   {
     "context": "GitPanel > Editor",
     "bindings": {
       "escape": "git_panel::FocusChanges",
-      "ctrl-enter": "git::Commit",
       "tab": "git_panel::FocusChanges",
       "shift-tab": "git_panel::FocusChanges",
+      "ctrl-enter": "git::Commit",
       "alt-up": "git_panel::FocusChanges"
     }
   },

crates/git_ui/src/git_panel.rs

@@ -1059,17 +1059,15 @@ impl GitPanel {
         }
     }
 
-    /// Commit all staged changes
     fn commit(&mut self, _: &git::Commit, window: &mut Window, cx: &mut Context<Self>) {
-        let editor = self.commit_editor.read(cx);
+        if self
-        if editor.is_empty(cx) {
+            .commit_editor
-            if !editor.focus_handle(cx).contains_focused(window, cx) {
+            .focus_handle(cx)
-                editor.focus_handle(cx).focus(window);
+            .contains_focused(window, cx)
-                return;
+        {
-            }
+            self.commit_changes(window, cx)
         }
-
+        cx.propagate();
-        self.commit_changes(window, cx)
     }
 
     pub(crate) fn commit_changes(&mut self, window: &mut Window, cx: &mut Context<Self>) {