Build 1.5.2

[pento]

There are a handful of bugs that have been fixed after 1.5.1, they need to be released sooner than 1.6.

This is a branch from the v1.5.1 tag, with the relevant commits cherry picked.

Changes

• Add the gutenberg_can_edit_post_type filter for plugins to add or remove support for custom post types.
• Fix Classic Editor redirecting to Gutenberg when saving a post.
• Fix Classic Editor dropdown showing on post types that don't support Gutenberg.
• Fix Classic Editor dropdown hiding behind notices.
• Fix an issue with collapsing popover content.

[codecov]

Codecov Report

Merging #3163 into master will decrease coverage by 1.13%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3163      +/-   ##
==========================================
- Coverage   31.63%   30.49%   -1.14%     
==========================================
  Files         217      219       +2     
  Lines        6275     6630     +355     
  Branches     1116     1221     +105     
==========================================
+ Hits         1985     2022      +37     
- Misses       3606     3832     +226     
- Partials      684      776      +92

Impacted Files	Coverage Δ
blocks/library/code/index.js	50% <0%> (-7.15%)	⬇️
blocks/editable/format-toolbar/index.js	5.19% <0%> (-1.19%)	⬇️
editor/writing-flow/index.js	0% <0%> (ø)	⬆️
editor/meta-boxes/index.js	0% <0%> (ø)	⬆️
editor/meta-boxes/iframe.js	0% <0%> (ø)
editor/meta-boxes/panel.js	0% <0%> (ø)
blocks/editable/index.js	11.96% <0%> (+1.26%)	⬆️
editor/utils/dom.js	21.91% <0%> (+5.81%)	⬆️

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[pento]

Closing this in favour of #3164.