Add options to generate page (#450)

* Add Item cheat permission to generate page.

* Indicate that both remaining_mode and item cheat are disabled in race mode.

* Add server_password

* refine tooltips and help for server_password and !admin command.

* Add Plando options to generation page.

* Remove debugging code

* Style adjustments and HTML formatting and tag fixes with the goal of making the page nicer looking and not as vertical.

Co-authored-by: Chris Wilson <chris@legendserver.info>

MultiServer.py

@@ -1060,7 +1060,10 @@ class ClientMessageProcessor(CommonCommandProcessor):
 
     @mark_raw
     def _cmd_admin(self, command: str = ""):
-        """Allow remote administration of the multiworld server"""
+        """Allow remote administration of the multiworld server
+        Usage: "!admin login <password>" in order to log in to the remote interface.
+        Once logged in, you can then use "!admin <command>" to issue commands.
+        If you need further help once logged in.  use "!admin /help" """
 
         output = f"!admin {command}"
         if output.lower().startswith(