Major config changes

Add alacritty config, as it is my main terminal now
Change **a lot** of nvim configs
Add tmux configuration
Update zsh configs
Add .gitconfig with custom pager
Include tmux-plugin-manager as a submodule

.local/bin/scripts/gd

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+
+read -p "Date: " date
+export GIT_AUTHOR_DATE="${date}"
+export GIT_COMMITTER_DATE="${date}"
+
+git $@