kept the api endpoint props just to stay compatible with clients that
expect them to be there. they are unused and won't get saved

Reverts https://github.com/transfem-org/Sharkey/commit/933c29f70424c3c2790b6b4d34bccbd2bc5a6840

before this change:

* create a note, with text
  * `note` has a row with the text
	* `note_edit` doesn't have any matching row
* edit the note, removing all the text
  * the row in `note` has the new, empty, text
	* `note_edit` has a matching row, but its `oldText` is NULL

so the original text is lost

after this change, the row in `note_edit` always keeps the previous
text

:has is not yet supported by firefox stable. can be reverted with the
release of firefox 121 (assuming we don't want to keep supporting older
versions)

reverts commit fb3a2bef

the width change does not feel like the correct solution but it works
surprisingly well

Quick-and-dirty corner roundness toggle

to keep things manageable i merged a lot of one off values into just a
handful of common sizes, so some parts of the ui will look different than
upstream even with the "Misskey" rounding mode

This reverts commit 74a07c38.

This reverts commit 86734353.