[x] Feature: Allow changing this plugin capability to show the settings page
[x] Fix: Update fixed element compat for the new Slidebars version (still experimental, Slidebars still doesn't fully support fixed elements within the site container)
[x] Fix: Don't echo empty sidebar CSS selectors if no styles are set
[x] UI: Set .ocs-button to cursor: pointer; by default
[x] Enhancement: Update magic method error strings for translations
.ocs-buttontocursor: pointer;by default