[BUG] [p]tags list doesn't escape markdown, and should probably be paginated

[tigattack]

Describe the bug

The message returned by [p]tags list isn't sanitised to escape markdown syntax. This results in broken output with anything as simple as _ in tag names.

To Reproduce
Steps to reproduce the behavior:

1. Add a tag with a name including markdown control characters, e.g. my_test_tag_
2. Run [p]tags list
3. See broken output

Expected behavior

Markdown should be escaped. This is trivial with redbot.core.utils.chat_formatting.escape.

As a stretch, it would be nice if the output were paginated. This is also trivial with redbot.core.utils.chat_formatting.pagify or redbot.core.utils.menus. An example of the former can be found in penis.py, and the latter in notes.py.

Pagination would be nice as lots of tags results in a very long output, which could also run into message length limits. Worth noting that I haven't checked the code to see if this is correctly handled, but given the lack of pagination I'd guess it isn't or could at least be improved.

Screenshots

See italicised text near the end:

Additional context