Rename the editor::ToggleGitBlame action to git::Blame (#26565)

Release Notes:

- Git Beta: Renamed `editor::ToggleGitBlame` to `git::Blame`

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/editor/src/actions.rs

@@ -412,7 +412,6 @@ gpui::actions!(
         Tab,
         Backtab,
         ToggleAutoSignatureHelp,
-        ToggleGitBlame,
         ToggleGitBlameInline,
         ToggleIndentGuides,
         ToggleInlayHints,