* refactor(blocks): Auto-migration of blocks/lists.js to ts
* fix(blocks): Manually migrate & fix types in lists.ts
* chore(blocks): format lists.ts
Not running clang-format on this as for some reason it decides
half way through the file to indent everything after that by
an extra four spaces (and then has to re-wrap a bunch of lines
that are consequently too long).
* refactor(blocks): Improve types in lists.ts
It turns out that the way I originally specified the types for
the mixins meant that they were all 'any', which is a bit
useless. Change them so that tsc actually typechecks
properties (including method calls) on the mixed-in blocks,
and then fix the numerous additional type errors which
doing this revealed.
(By "fix", I mean apply "as" casts and "!"s as required to
suppress type errors from tsc. Actually fixing the code in a
way that makes the blocks meaningfully more bulletproof is
left as an exercise to the reader - sorry, I mean: will be
dealt with in a future PR.)
* fix(blocks): Additional fixes for comments PR #6902
