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

.config/tmux/keybinds.conf

@@ -0,0 +1,21 @@
+# Change prefix key to C-a, found in in GNU Screen
+unbind-key C-b
+
+set-option -g prefix C-a
+bind-key C-a send-prefix
+
+# Sane splits
+bind u previous-window
+bind i next-window
+
+bind n new-window -c "#{pane_current_path}"
+
+bind k split-window -v
+bind l split-window -h
+
+# Rebind command key to ;
+bind \; command-prompt
+
+bind-key -n M-C-l send-keys C-l
+
+# vim: ft=tmux