Media Modal: Restore to the previous filter and search error message.

fixes #28963.
Built from https://develop.svn.wordpress.org/trunk@29532


git-svn-id: http://core.svn.wordpress.org/trunk@29308 1a063a9b-81f0-0310-95a4-ce76da25c4cd
DFW: revert applying the Visual editor body color and background-color for now. Set the color to #333 and the background to transparent. Fixes #28330.
Built from https://develop.svn.wordpress.org/trunk@29533


git-svn-id: http://core.svn.wordpress.org/trunk@29309 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Plugin details: Accessibility improvements

* Focus the close link to transfer focus into the plugin modal.
* Set title attribute on iframe for screereaders.

props jwenerd for initial patch and a11y team for testing.
fixes #28823.
Built from https://develop.svn.wordpress.org/trunk@29534


git-svn-id: http://core.svn.wordpress.org/trunk@29310 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: ignore more keys when the caret is around a view. Part props avryl, fixes #29115.
Built from https://develop.svn.wordpress.org/trunk@29535


git-svn-id: http://core.svn.wordpress.org/trunk@29311 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: remove CSS transition for the fake caret. Can have very annoying side effect: the whole page shifts a bit. See #28595.
Built from https://develop.svn.wordpress.org/trunk@29536


git-svn-id: http://core.svn.wordpress.org/trunk@29312 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Don't display an empty "Uploaded To" link in the media modal after [29436].

see #28844.
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git-svn-id: http://core.svn.wordpress.org/trunk@29313 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Correct 'no_found_rows' parameter description.

see #25367.
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git-svn-id: http://core.svn.wordpress.org/trunk@29314 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Prevent "Add" button in Tags meta box from wrapping to a new line in ru_RU.

fixes #29265. see #26510.
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git-svn-id: http://core.svn.wordpress.org/trunk@29315 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix typo in the 'wpeditimage' plugin, see #28705
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git-svn-id: http://core.svn.wordpress.org/trunk@29316 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: fix the keycode check when removing the Edit/Delete toolbar from images on keydown, see #28705
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git-svn-id: http://core.svn.wordpress.org/trunk@29317 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Align and unify (most) modal and customizer icons. fixes #29147.

Built from https://develop.svn.wordpress.org/trunk@29542


git-svn-id: http://core.svn.wordpress.org/trunk@29318 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView sandbox iframes: 
- Make them transparent.
- Don't load tons of unrelated styles that can break them. This could result in minimal styling mismatch to the front-end, but keeps the views working well and looking good.
Props avryl, fixes #29048.
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git-svn-id: http://core.svn.wordpress.org/trunk@29319 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: add sandbox iframe body styling to get proper height when resizing the iframe, fixes #29270.
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git-svn-id: http://core.svn.wordpress.org/trunk@29320 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: scale iframes to 100% width and ensure they have transparent background. See #29048.
Built from https://develop.svn.wordpress.org/trunk@29545


git-svn-id: http://core.svn.wordpress.org/trunk@29321 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: show an error when no items are found while parsing a audio/video/playlist shortcode. Props avryl, fixes #29114.
Built from https://develop.svn.wordpress.org/trunk@29546


git-svn-id: http://core.svn.wordpress.org/trunk@29322 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Library: Set max value of columns to 12.

fixes #29275.
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git-svn-id: http://core.svn.wordpress.org/trunk@29323 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Grid: Don't hide error messages behind the toolbar.

fixes #29141.
Built from https://develop.svn.wordpress.org/trunk@29548


git-svn-id: http://core.svn.wordpress.org/trunk@29324 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`wp_update_term()` should mimic `wp_insert_term()` and set a value for `$term_group` before the `alias_of` logic runs. This ensures that `$term_group` exists when `compact()` is called.

See [28461].
Fixes #29278.

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git-svn-id: http://core.svn.wordpress.org/trunk@29325 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media: Remove scan for lost attachments.

This hasn't been worked for 4 years.

fixes #29169.

Built from https://develop.svn.wordpress.org/trunk@29550


git-svn-id: http://core.svn.wordpress.org/trunk@29326 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Grid: Cleanup toggling of Next/Previous in Edit modal.

Fixes #29264.

Built from https://develop.svn.wordpress.org/trunk@29551


git-svn-id: http://core.svn.wordpress.org/trunk@29327 1a063a9b-81f0-0310-95a4-ce76da25c4cd