Issue #3043228 by shaal, kjay, bnjmnm, tim.plunkett, Gábor Hojtsy: Add Umami-specific styling for Layout Builder messages

Issue #3041053 by tim.plunkett, tedbow, xjm, larowlan, phenaproxima, webchick, effulgentsia, DyanneNova, Sam152, lauriii, dead_arm, bnjmmn, balsama: Mark Layout Builder as a stable module

Issue #2959493 by bnjmnm, phenaproxima, tim.plunkett, tedbow, Adrian83, lauriii, xjm, andrewmacpherson, johndevman, KarenS, alwaysworking, jrockowitz, ckrina, cboyden, webchick, seanB, benjifisher, larowlan: Allow Layout Builder live previews to be toggled to allow easier drag-and-drop

(cherry picked from commit d028385c)

Issue #2988970 by phenaproxima, tim.plunkett, tedbow, bnjmnm, lauriii, sugaroverflow, DyanneNova, balsama, webchick, xjm, dead_arm, Gábor Hojtsy, worldlinemine: Layout Builder should make it easier to modify the default layout for an entity type when viewing an entity

Issue #2995689 by tedbow, bnjmnm, lauriii, bendeguz.csirmaz, andrewmacpherson, xjm, tim.plunkett, KarenS, alwaysworking: Allow reordering blocks without a pointer device

(cherry picked from commit a73bf047)

Issue #2994909 by bnjmnm, tedbow, kostyashupenko, tim.plunkett, lauriii, samuel.mortenson, Kristen Pol, xjm, andrewmacpherson, alwaysworking, DyanneNova, jrockowitz, worldlinemine, phenaproxima, ckrina, benjifisher, rainbreaw, webchick: Highlight active element while working with dialogs in Layout Builder

Issue #3040241 by bnjmnm, lauriii, DyanneNova: Add section and add block section doesn't have sufficient color contrast for text

Issue #3038413 by bnjmnm, lauriii, DyanneNova: Replace editable-area negative-offset outline with something that IE11 can handle

Issue #2938182 by bnjmnm, phenaproxima, DyanneNova, webchick, andrewmacpherson, xjm, tedbow, benjifisher: Design intuitive affordances for Layout Builder (for illustrating which parts of the page are editable in a given context)

Issue #3034347 by dead_arm, phenaproxima, tim.plunkett, lauriii: Update the Layout Builder UI classes to implement BEM naming conventions

Issue #2973921 by tedbow, bnjmnm, yogeshmpawar, Kristen Pol, lauriii, alwaysworking, xjm, andrewmacpherson: Interactive controls inside preview block in the Layout Builder form should be disabled

Issue #2998862 by bnjmnm, tedbow, bendeguz.csirmaz, samuel.mortenson, starshaped, phenaproxima, lauriii, alwaysworking, andrewmacpherson: The Layout Builder block listing should be filterable

Issue #2968500 by tedbow, bendeguz.csirmaz, samuel.mortenson, phenaproxima, lauriii, AaronMcHale: Change inline blocks workflow in Layout Builder to match mocks

Issue #2916877 by DyanneNova, tim.plunkett, joelpittet: Update Layout Builder CSS to match updated mockups

Issue #2866801 by harsha012, joelpittet, BrightBold, droplet, Akshay kashyap, arunkumark, bmx269: Update stylelint rules color-hex-length to be consistent with Drupal's CSS standards

Issue #2905922 by tim.plunkett, tedbow, xjm, EclipseGc, webchick, vijaycs85, larowlan, andrewmacpherson, droplet, Bojhan, mgifford, drpal, phenaproxima, DyanneNova, japerry: Implementation issue for Layout Builder

Revert "Issue #2905922 by tim.plunkett, xjm, EclipseGc, vijaycs85, webchick, larowlan, andrewmacpherson, Bojhan, droplet, mgifford, drpal, japerry, tedbow, DyanneNova, phenaproxima: Implementation issue for Layout Builder"

This reverts commit 88a22dda.

Issue #2905922 by tim.plunkett, xjm, EclipseGc, vijaycs85, webchick, larowlan, andrewmacpherson, Bojhan, droplet, mgifford, drpal, japerry, tedbow, DyanneNova, phenaproxima: Implementation issue for Layout Builder