fixes clearing checked settings

Supports Matomo/Piwik string website ID ("Protect Track ID" plugin)

Closes #61606

See merge request gitlab-org/gitlab-ce!28214

CE: Move EE differences for app/views/groups/group_members/index.html.haml

See merge request gitlab-org/gitlab-ce!28026

Generate Let's Encrypt private key

See merge request gitlab-org/gitlab-ce!27581

doc: administration/planutml: update instructions for setting dialogs

See merge request gitlab-org/gitlab-ce!28218

Upgrade Ruby version to 2.6.3

See merge request gitlab-org/gitlab-ce!28117

Add warning that gitlab-secrets isn't included

See merge request gitlab-org/gitlab-ce!28187

i18n: externalize strings from user profile settings

See merge request gitlab-org/gitlab-ce!28088

Fix discussion notes spec timeout

Closes #61596

See merge request gitlab-org/gitlab-ce!28212

Many customers forget to include the gitlab-secrets.json file. This adds
a warning that both gitlab-secrets.json and gitlab.rb are not included
in the backup.

When using Matomo/Piwik integration, only integer website IDs can be used.
If using the "Protect Track ID" Matomo plugin (https://plugins.matomo.org/ProtectTrackID), website IDs are strings which the "_piwik.html.haml" layout file does not supports because it assumes "extra_config.piwik_site_id" variable contains an integer and prints it to JavaScript code without quotes.

This commits surrounds "extra_config.piwik_site_id" variable with double quotes (") so that it works with both integers and strings.

Issue: #61606

Better separate the component table and chart, improve grammar

See merge request gitlab-org/gitlab-ce!28211

admin/projects/show.html.haml single codebase

Closes gitlab-ee#6100

See merge request gitlab-org/gitlab-ce!28192

fix doc link issues

See merge request gitlab-org/gitlab-ce!28166

Remove k8s components, remove default status indicators

See merge request gitlab-org/gitlab-ce!28195

Part of single codebase changes.

Ruby 2.6 offers better performance and memory usage:
https://www.rubyguides.com/2018/11/ruby-2-6-new-features/

Part of https://gitlab.com/gitlab-org/gitlab-ce/issues/57323

CE backport of merge request blocks - backend MVC

See merge request gitlab-org/gitlab-ce!27323

Fix label creation within Bitbucket import if labels already exist

Closes #58623

See merge request gitlab-org/gitlab-ce!27987

This will avoid timestamp comparison issues later within equality check
with attributes

Remove jira_spec from quarantine

Closes #60953

See merge request gitlab-org/gitlab-ce!28203

CE: Fixes EE differences for app/views/repository_check_mailer/notify.text.haml

See merge request gitlab-org/gitlab-ce!28022

58404 - setup max depth for graphql

Closes #58404

See merge request gitlab-org/gitlab-ce!25737

Adds header column to variables list

Closes #46806

See merge request gitlab-org/gitlab-ce!28060

Handle errors in successful notes reply

Closes #61377

See merge request gitlab-org/gitlab-ce!28082

Docs nneul/gitlab ce patch 1

Closes omnibus-gitlab#4132

See merge request gitlab-org/gitlab-ce!28182

Revert "Merge branch 'fix-mermaid-chart-docs' into 'master'"

See merge request gitlab-org/gitlab-ce!28193

Add info to docs about mapping a ping to the category it belongs to.

See merge request gitlab-org/gitlab-ce!28189

This reverts merge request !28188

Fix subpixel border issue on MR discussions

Closes #53973

See merge request gitlab-org/gitlab-ce!28185

Fix input group and action buttons in "set status" modal

Closes #61494

See merge request gitlab-org/gitlab-ce!28147