Merge branch '1.1.x' of https://git.drupalcode.org/project/socialblue into issue/3206945-enrollment-settings

Merge branch '1.1.x' of https://git.drupalcode.org/project/socialblue into issue/3200089-footer-spacing-without-logo

Merge branch '1.1.x' of https://git.drupalcode.org/project/socialblue into issue/3206945-enrollment-settings

Merge branch '1.1.x' of https://git.drupalcode.org/project/socialblue into issue/3203000-impove-back-button-tag-teaser

# Conflicts:
#   templates/node/event/node--event--featured--sky.html.twig

Merge branch '1.1.x' of https://git.drupalcode.org/project/socialblue into 3205264-update-profile-template

We have added drupal core compatibility to our info.yml files to show all our custom work is compatible by using
core_version_requirement: ^8.8 || ^9

We have ensured to remove all deprecated code which is removed from Drupal 9. The replacement code is compatible with Drupal 8.9 as well so untill all our contributed modules are Drupal 9 ready, we are still installing Drupal 8.9.

We have added phpstan as a github action, to make sure we wont be using any deprecated code anymore either. All new code will be ran at lvl 5 strictness as well, to ensure our code is also hold to a higher standard.
Co-authored-by: jochemvn <jochemvn@gmail.com>
Co-authored-by: ronaldtebrake <ronald@goalgorilla.com>
Co-authored-by: Bram ten Hove <bram@getopensocial.com>

Merge branch '10.0.x' of github.com:goalgorilla/open_social into feature/DS-7450-popover-visibility-settings

Issue #3192493 by sjoerdvandervis: Canonical URL for flexible group points to stream

DS-7429: Add updates for the field and fieldset labels

Issue #3177902 by rolki, chmez, agami4, ronaldtebrake: Album feature

Internal - Update rebranding

Issue #3192988 by Kingdutch: Expose primary platform color as CSS var…

DS-7516 by ronaldtebrake: Ensure we update our rebranding for socialblue, but only if our users are using the default logo for updates. Also includes a new email logo, as in email we want a different one from the one in the menu

DS-7516 by ronaldtebrake: Update favicon, logo and our swiftmailer template to use updated rebranding in emails

Issue #3192493 by sjoerdvandervis: Change logic; remove RouteSubscriber and add about URL to the variables sent towards the template file. Then, we'll just print this about url in this specific block