Overview: Get TT1 Blocks ready for 5.7

[carolinan]

5.7 will include changes from Gutenberg 9.3 to 9.9.

• [ ] Gutenberg 9.3: Buttons block width and justification. Status: Works in the editor, but not on the front. Note that button styles have not been moved over from Twenty Twenty-One. This CSS:

  .wp-site-blocks * {
  margin-left: auto;
  margin-right: auto;
  }

  Seems to be interfering with the new .wp-block-buttons.is-content-justification-*

• [x] Gutenberg 9.4: Button block % width: -The alignment is not correct on the front but I don't think this is related to the size option but the wp-site-blocks margins above.

• [x] Gutenberg 9.4: Social icon size -The alignment is not correct on the front but I don't think this is related to the size option but the site-blocks margins above.

• [x] Gutenberg 9.4: List block font size

• [x] Gutenberg 9.4: Search block CSS changes -not applicable, TT1 Blocks does not style this but uses default styles.

• [x] Gutenberg 9.5: Cover block full height.

• [x] Gutenberg 9.5: Font sizes support in Code block, Simplify CSS for the code block. -Not applicable, TT1 Blocks does not style this but uses default styles.

• [x] Gutenberg 9.6: Vertical layout for buttons

• [x] Gutenberg 9.6: Remove CSS Custom Property in code block. Fix regression on code block for font-size property. -Not applicable,

• [x] Gutenberg 9.6: Site Logo: Remove line height. Add a rounded block style. Status: The rounded style is not applied. Possibly an FSE issue, needs further testing.

• [x] Gutenberg 9.7: HTML Block: udpated editor styles. Not an issue for TT1 Blocks.

• [ ] Gutenberg 9.8: Hide the theme without comments.php deprecation message. 🎉