nvim: Add binding to gitsigns

Want to be able to do in line blames with a keybinding using gitsigns

Signed-off-by: Nicholas Mello <nick@nmello.dev>

nvim/lua/plugins/git.lua

@@ -16,5 +16,15 @@ return {
         attach_to_untracked = true,
       })
     end,
+    keys = {
+      {
+        "<leader>ab",
+        function() require("gitsigns").toggle_current_line_blame() end,
+        mode = "n",
+        desc = "Toggle Git blame",
+        noremap = true,
+        silent = true,
+      }
+    }
   },
 }