Resolve "MR Refactor: Improve performance by setting v-once"

Closes #48982

See merge request gitlab-org/gitlab-ce!20468

Merge branch '48897-mr-refactor-parallel-and-diff-view-are-being-rendered-at-the-same-time' into 'master'

Resolve "MR refactor: parallel and diff view are being rendered at the same time"

Closes #48897

See merge request gitlab-org/gitlab-ce!20440

Add basic export to fix timeout problem on import_file_spec.rb

See merge request gitlab-org/gitlab-ce!20469

Improve render performance of large wiki pages

See merge request gitlab-org/gitlab-ce!20465

[ci skip]

Compile often used regexps only once outside of the loop.

This commit improves the performance of large wiki pages with many, many references.

Merge branch '48661-node-6-and-7-compatibility-broken-by-recent-monaco-editor-upgrade' into 'master'

Resolve "Node 6 and 7 compatibility broken by recent Monaco editor upgrade"

Closes #48661

See merge request gitlab-org/gitlab-ce!20461

Add missing foreign key in import_export_uploads

See merge request gitlab-org/gitlab-ce!20458

Merge branch '48670-application-settings-may-not-be-invalidated-if-migrations-are-run' into 'master'

Resolve "Application settings may not be invalidated if migrations are run"

Closes #48670

See merge request gitlab-org/gitlab-ce!20389

Refactor rspec matchers in read_only_spec.rb

See merge request gitlab-org/gitlab-ce!20414

Redesign for mr widget info and pipelines section

Closes #46795

See merge request gitlab-org/gitlab-ce!20189

Resolve "GitLab Project export should use object storage"

Closes #46246

See merge request gitlab-org/gitlab-ce!20105

remove extra tick for eks docs

See merge request gitlab-org/gitlab-ce!20453

Use proper markdown rendering for previews

See merge request gitlab-org/gitlab-ce!19672