v0.27.5-ls76

LinuxServer Changes:

Rebasing to alpine 3.11.
bookstack Changes:

This release contains the following fixes and updates:

• Fixed overlapping text on book sort box. (#1654)
• Fixed issue where comments could not be deleted. (#1650)
• Improved the logic used to animate slide-up/slide-down sections to help prevent them getting stuck. (#1643)