refactor(git): rework blame highlights and rename overlay to gutter

plugin/git.lua

@@ -4,6 +4,8 @@ end
 vim.g.loaded_git = 1
 
 local DEFAULT_HIGHLIGHTS = {
+    GitAuthor = "String",
+    GitDate = "Number",
     GitIgnored = "Comment",
     GitSha = "Identifier",
     GitStaged = "Constant",
@@ -41,7 +43,9 @@ local DEFAULT_HIGHLIGHTS = {
     GitHunkAddLine = "DiffAdd",
     GitHunkDeleteLine = "DiffDelete",
 
-    GitBlame = "Comment",
+    GitBlameAuthor = "GitAuthor",
+    GitBlameDate = "GitDate",
+    GitBlameInline = "Comment",
     GitBlameSha = "GitSha",
 }
 local STAGED_HUNK_HL = {
@@ -318,9 +322,9 @@ vim.api.nvim_create_user_command("GitDiffOverlay", function()
     require("git.hunks").toggle_overlay()
 end, { desc = "Toggle the git diff overlay in the current buffer" })
 
-vim.keymap.set("n", "<Plug>(git-blame)", function()
-    require("git.blame").toggle_overlay()
-end, { silent = true, desc = "Toggle the full-file git blame overlay" })
+vim.keymap.set("n", "<Plug>(git-blame-gutter)", function()
+    require("git.blame").toggle_gutter()
+end, { silent = true, desc = "Toggle the full-file git blame gutter" })
 vim.keymap.set("n", "<Plug>(git-blame-line)", function()
     require("git.blame").toggle_inline()
 end, { silent = true, desc = "Toggle inline git blame" })
@@ -341,8 +345,8 @@ end, {
 })
 
 vim.api.nvim_create_user_command("GitBlame", function()
-    require("git.blame").toggle_overlay()
-end, { desc = "Toggle the full-file git blame overlay in the current buffer" })
+    require("git.blame").toggle_gutter()
+end, { desc = "Toggle the full-file git blame gutter in the current buffer" })
 vim.api.nvim_create_user_command("GitBlameLine", function()
     require("git.blame").toggle_inline()
 end, { desc = "Toggle inline git blame in the current buffer" })