v21.04.6-ls135

LinuxServer Changes:

Remove unused requirement, as of release 0.31.0.

bookstack Changes:

Links

• Update instructions

This release contains the following fixes and changes:

• Added a way to configure options on a social driver, for the initial redirects, through the Theme::addSocialDriver system. (#2759)
• Fixed scenario where recent Image upload visibility changes caused issues on hosting where webserver and PHP process group/user differ. (#2758)