Merge pull request #20462 from calixteman/improve_thumbnails

Slightly reduce the memory used by thumbnails

Merge pull request #20213 from lab-core/pointer-type

[Editor] A new CurrentPointers class to store current pointers used by the editor

Merge pull request #20333 from calixteman/issue20302

Fix incremental saving with hybrid references

Merge pull request #20210 from calixteman/comment_sidebar

[Editor] Add a sidebar allowing the user to navigate between the comments in a pdf (bug 1985567)

Merge pull request #20120 from calixteman/remove_actions_button

[Editor] Don't show the actions button in the comment popup when it's useless

Merge pull request #20056 from calixteman/one_click

[Editor] Allow to change the editor mode when selecting the corresponding editor (bug 1975538)

Merge pull request #19952 from timvandermeij/intermittent-viewer-origin

Fix intermittent failure in the "supports specifying a custom origin" viewer integration test

Merge pull request #19873 from timvandermeij/fix-editor-undo-bar-inte…

…rmittents

Fix the "must work properly when selecting undo by keyboard" integration test

Merge pull request #19735 from Snuffleupagus/Type3WordSpacing

Apply char/word-spacing correctly for missing Type3-glyphs

Merge pull request #19661 from Snuffleupagus/thumbnails-inline-finish…

…RenderTask

Inline the `PDFThumbnailView.prototype.#finishRenderTask`  helper method