[Help] Continuing work and bug-fixes (#2676)

* [Help] Add settings for various things

  - Fixes a small issue in a previously not-exposed logic path
  - Fixes an issue with denied commands help invocation
  - Adds some global usage settings

* remove outdated comment

* improve intent of strings

* added punctuation

* Add DM forbidden handling

* use a slightly different method for shortening embed width specifically

redbot/core/bot.py

@@ -52,6 +52,10 @@ class RedBase(commands.GroupMixin, commands.bot.BotBase, RPCMixin):
             custom_info=None,
             help__page_char_limit=1000,
             help__max_pages_in_guild=2,
+            help__use_menus=False,
+            help__show_hidden=False,
+            help__verify_checks=True,
+            help__verify_exists=False,
             help__tagline="",
             disabled_commands=[],
             disabled_command_msg="That command is disabled.",