They were only disabled in the reply tool, because their wikitext
markup doesn't work when indented. This is not a concern in the new
topic tool.
Rename our sequences that display the wikitext warning to avoid these
items showing up in the command help dialog, and remove overrides for
global ve.ui.commandHelpRegistry. (As a result, the dialog now lists
the blockquote command, which was previously missing even though it
was enabled, but only with the 'Ctrl+8' shortcut and not 'Type ":"'.)
Also remove filtering rules for external paste.
Bug: T311653
Change-Id: I4557c376fcf099d81e91ae5c2b18301d97921180
Longer, but follows the style guide and less likely to conflict.
We need to account for init classes in the cache being around for
a while.
Change-Id: I738bc93393850db320fdbda2b003ca8ac40556da
