style(gitcommit): fix formatting and remove extra blank line

- reformat long vim.notify call for readability in git.lua
- remove unnecessary blank line in init.lua

Author: jinzhongjia

lua/codecompanion/_extensions/gitcommit/git.lua

@@ -231,7 +231,10 @@ function Git.commit_changes(message)
       if Git.is_amending() then
         vim.notify("No changes to amend. The commit already exists.", vim.log.levels.WARN)
       else
-        vim.notify("No changes found to commit. Please stage your changes or ensure there are unstaged changes in your working directory.", vim.log.levels.ERROR)
+        vim.notify(
+          "No changes found to commit. Please stage your changes or ensure there are unstaged changes in your working directory.",
+          vim.log.levels.ERROR
+        )
       end
     end
     return false

lua/codecompanion/_extensions/gitcommit/init.lua

@@ -218,7 +218,6 @@ return {
     setup_slash_commands(opts)
   end,
 
-
   exports = {
     ---Generate commit message programmatically (for external use)
     ---@param lang string|nil Language to generate commit message in (optional)