Link fish config files instead of copying

Install/fish-custom

@@ -1,7 +1,6 @@
 #!/usr/bin/fish
 
 # Install fish customization
-
-mkdir -p /home/jovian/.config/fish
-cp -r ./Templates/fish/* /home/jovian/.config/fish/
+mkdir --parents /home/jovian/.config/fish
+cp --recursive --update --link ./Templates/fish/* /home/jovian/.config/fish/