Add an undo button to the git panel (#24593)

Also prep infrastructure for pushing a commit

Release Notes:

- N/A

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Conrad <conrad@zed.dev>
Co-authored-by: Nate Butler <iamnbutler@gmail.com>

crates/editor/src/editor.rs

@@ -13,10 +13,10 @@
 //!
 //! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
 pub mod actions;
-mod blame_entry_tooltip;
 mod blink_manager;
 mod clangd_ext;
 mod code_context_menus;
+pub mod commit_tooltip;
 pub mod display_map;
 mod editor_settings;
 mod editor_settings_controls;