v21.05.2-ls142

LinuxServer Changes:

Remove unused requirement, as of release 0.31.0.

bookstack Changes:

Links

• Update instructions

Full List of Changes

This release contains the following fixes and changes:

• Added the ability to server attachments without forcing downloads. (#2791)
• Fixed issue where empty HTML comments could cause errors. (#2804)
• Updated translations with latest changes from Crowdin. (#2790)
• Extracted not found text into it's own view for easier overriding (58117bc)