Issue #3209129: Scrolling problems when adding a block via layout builder

added 2948 commits

• 2613413a...b6aef35b - 585 commits from branch project:10.1.x
• b6aef35b...6ef6a009 - 2353 earlier commits
• 73774eb4 - Revert "Issue #3456556 by pooja_sharma, longwave, quietone: Improve date...
• 3ef0e0a2 - Issue #3459747 by quietone, smustgrave: Fix 12 words in tests
• 6aa443c1 - Issue #1974928 by jwilson3, ckrina, chrisfree, ellizard, Mithun S,...
• 20a70106 - Issue #3313449 by JeffMattson, joachim: QueueWorkerInterface is missing docs...
• 01b55ef5 - Issue #3376942 by fromme, Kingdutch, smustgrave: Replace usage of...
• 5f17c3a2 - Issue #3460246 by Prem Suthar, joachim, afeijo: incorrect docs in DateFormatter::format()
• bf4dfeaa - Issue #3458966 by apaderno, smustgrave: Correct the punctuation on the...
• 2e311a8d - Issue #1650198 by apaderno, quietone, jhodgdon, smustgrave: Remove references...
• 717b02a8 - Issue #3459240 by jurgenhaas, b_sharpe, longwave, quietone: Deprecation...
• 947b79b0 - sync with 11.x

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I'm not able to update the source branch to 11.x.