fix: Updated Git config for simplified push and rebase pull

Configured git to use the `simple` pushing strategy and to rebase
instead of merge on pull, optimizing the workflow and reducing merge
conflicts. This setting makes push defaults safer and pull updates
cleaner by rebasing local changes on top of fetched commits.

.gitconfig

@@ -2,6 +2,12 @@
 	editor = nvim
 	symlinks = true
 
+[push]
+	default = simple
+
+[pull]
+	rebase = true
+
 [alias]
 	st = status
 	ci = commit --verbose