feat: enhance terminal and git configurations

- Add bar cursor style to Ghostty config
- Enable automatic remote setup for Git push
- Simplify zsh plugin configuration
- Expand and improve shell aliases

git/.gitconfig

@@ -8,3 +8,5 @@
 	clean = git-lfs clean -- %f
 	smudge = git-lfs smudge -- %f
 	process = git-lfs filter-process
+[push]
+	autoSetupRemote = true