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"
     }
   },