install: fix broken links

Also init scheme and shell

install.fish

@@ -71,6 +71,7 @@ end
 # Variables
 set -q _flag_noconfirm && set noconfirm '--noconfirm'
 set -q XDG_CONFIG_HOME && set -l config $XDG_CONFIG_HOME || set -l config $HOME/.config
+set -q XDG_STATE_HOME && set -l state $XDG_STATE_HOME || set -l state $HOME/.local/state
 
 # Startup prompt
 set_color magenta
@@ -137,6 +138,9 @@ end
 log 'Installing metapackage...'
 yay -S --needed caelestia-meta $noconfirm
 
+# Cd into dir
+cd (dirname (status filename)) || exit 1
+
 # Install hypr* configs
 if confirm-overwrite $config/hypr
     log 'Installing hypr* configs...'
@@ -272,4 +276,10 @@ if set -q _flag_zen
     log 'Please install the CaelestiaFox extension from https://addons.mozilla.org/en-US/firefox/addon/caelestiafox if you have not already done so.'
 end
 
+# Generate scheme stuff if needed
+test -f $state/caelestia/scheme.json || caelestia scheme set -n shadotheme
+
+# Start the shell
+caelestia shell -d > /dev/null
+
 log 'Done!'