Fix a typo in the PHPDoc for `wp_register_sidebar_widget()`.

Props Jonnyauk.
Fixes #29007.

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After [29179], remove the last instance of `this.isCompatibleSrc()`.

Props kovshenin.
See #28905.


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Add support for `attachment_fields_to_edit` in the attachment details modal. props ericlewis. fixes #28991, see #24716.

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Editor scrolling:
- Improve TinyMCE resizing when a floated block is at the end of the content.
- Improve setting the padding/margin under the toolbar on loading.
- Add custom event on TinyMCE resizing and use it to adjust the pinning (if needed).
Part props avryl, see #28328.
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Media Grid: Remove fields from showing in the grid itself.

All details are still available within the modal, and less-distinguishable non-image files still show the filename along with the file type icon.

Reverts [29079], [29078], [29077], and [28995]. see #24716.

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