Replace deprecated bs.affix in merge request tabs with sticky polyfill

Closes #47661

See merge request gitlab-org/gitlab-ce!20269

Update personal access token form styles

See merge request gitlab-org/gitlab-ce!20275

Merge branch '48603-merge-request-refactor-title-and-copy-to-clipboard-button-are-behind-the-action-buttons' into 'master'

Resolve "Merge request refactor: Title and copy to clipboard button are behind the action buttons"

Closes #48603

See merge request gitlab-org/gitlab-ce!20274

Add helper methods to stub Gitlab::ExclusiveLease

See merge request gitlab-org/gitlab-ce!20253

i18n: externalize strings from 'app/views/admin/identities'

See merge request gitlab-org/gitlab-ce!19927

Style updates for personal access token form

See merge request gitlab-org/gitlab-ce!20052

Resolve "Merge request refactor displays changes dropdown incorrectly"

Closes #48497

See merge request gitlab-org/gitlab-ce!20245

Improve error messaging across various IDE actions

See merge request gitlab-org/gitlab-ce!20241

Add pipeline stages position clean-up migration

Closes #45956

See merge request gitlab-org/gitlab-ce!19369

Add transfer project endpoint to the Projects API

Closes #45146

See merge request gitlab-org/gitlab-ce!20122

Fix ambiguous due_date column for Issue scopes

Closes #47769

See merge request gitlab-org/gitlab-ce!20251

Always serve favicon from main GitLab domain so that CI badge can be drawn over it

Closes #47802

See merge request gitlab-org/gitlab-ce!20263

Enabling Doorkeeper reuse_access_token option

Closes #46278

See merge request gitlab-org/gitlab-ce!20200

Rails5 fix MySQL milliseconds problem in specs

Closes #48430

See merge request gitlab-org/gitlab-ce!20221

Rails5 fix Mysql comparison failure caused by milliseconds problem

Closes #48432

See merge request gitlab-org/gitlab-ce!20222

in this it also removes Vue Resource from the IDE, axios is nicer to test

Merge branch '43472-remove-environment-scope-field-on-cluster-creation-form-for-core-starter-plans' into 'master'

Resolve "Remove "environment scope" field on cluster creation form for core/starter plans"

Closes #43472

See merge request gitlab-org/gitlab-ce!19643

Fix OAuth application authorization screen to appear with every access

See merge request gitlab-org/gitlab-ce!20216

Prettifies pipeline's javascript code

See merge request gitlab-org/gitlab-ce!20217