Add kitty.conf to dotfiles and set as default terminal

- Add .config/kitty/kitty.conf
- setup.sh now sets kitty as default terminal via update-alternatives
- README updated to include kitty.conf

.config/kitty/kitty.conf

@@ -0,0 +1,50 @@
+# kitty config
+# https://sw.kovidgoyal.net/kitty/conf/
+
+# Basic settings
+font_size 12.0
+scrollback_lines 10000
+
+# Bell
+enable_audio_bell no
+
+# Performance
+repaint_delay 10
+input_delay 3
+sync_to_monitor yes
+
+# Tab bar
+tab_bar_edge top
+tab_bar_style powerline
+active_tab_font_style bold
+inactive_tab_font_style normal
+
+# vi-style scrollback
+map ctrl+shift+p launch --stdin-source=@screen --stdin-add-formatting less -R
+map ctrl+shift+h show_scrollback
+
+# Copy/paste
+map ctrl+shift+c copy_to_buffer primary clipboard
+map ctrl+shift+v paste_from_clipboard
+
+# Splits (tmux-style)
+map ctrl+shift+enter new_window
+map ctrl+shift+] launch --location=hsplit
+map ctrl+shift+[ launch --location=vsplit
+
+# Navigate splits
+map ctrl+shift+h neighboring_window left
+map ctrl+shift+l neighboring_window right
+map ctrl+shift+k neighboring_window up
+map ctrl+shift+j neighboring_window down
+
+# Resize splits
+map ctrl+shift+arrow_left resize_window narrower
+map ctrl+shift+arrow_right resize_window wider
+map ctrl+shift+arrow_up resize_window taller
+map ctrl+shift+arrow_down resize_window shorter
+
+map ctrl+shift+f show_scrollback
+
+# Auto copy on select
+copy_on_select yes