feat: updates fish_greetings.fish

fish/theme-t31m/fish_greeting.fish

@@ -1,13 +1,13 @@
 set -g CMD_DURATION 0
 
-function dim
+#function dim
-    set_color -o 4f4f4f
+#    set_color -o 4f4f4f
-end
+#end
 
-function off
+#function off
-    set_color -o normal
+#    set_color -o normal
-end
+#end
 
 function fish_greeting
-	echo "Welcome to FiSH "(dim)(uname -nrs)(off)
+	echo "Welcome to FiSH "(uname -nrs)
 end