Redirect after session expiry to the previous loaded page

Added migrator test for reserved keyword

Default app fix

fix the layout of the enforced expiry date message

* fixes #6945

Also separate the function into getDefaultPageUrl() and
redirectToDefaultPage() to make it testable.

Hides table header while users load in User Management

If a default app isn't visible for the user, try the next one.
Else fallback to the "files" app.

Fix warnings when personal is not set

search term for users and groups may occur anywhere in the name or displ...

LDAP: fix background job, fixes #8995

add missing backticks

add indie.json for Indie App Store listing

Return 503 in  public.php and OCS API when upgrade is due

change 'Cancel upload' text to x icon for more space in breadcrumbs bar

Use filtered list for ext storage list mounts API

Use get random bytes as uniqeid() is not unique in some cases

Fixes typo with sendmail detection - fixes #9203

[encryption] check if file still exists before removing encryption keys

Design share fixes

To prevent unexpected behavior, public.php and the OCS API calls will
return 503 Service Unavailable when an upgrade is due.

Do not strict compare item source id so the dropdown is closed correctly