The Events Calendar - Filter Bar 5.5.7

* Version - Filter Bar 5.3.0 is only compatible with The Events Calendar 5.15.0 and higher
* Feature - Add compatibility to the new TEC admin menu system. [ET-1335]
* Language - 0 new strings added, 25 updated, 0 fuzzied, and 0 obsoleted

* Fix - Don't urldecode the filter labels - it breaks special characters. [FBAR-238]
* Language - 0 new strings added, 1 updated, 0 fuzzied, and 0 obsoleted

* Version - Filter Bar 5.2.0 is only compatible with The Events Calendar 5.9.0 and higher
* Feature - Stop compiling CSS custom props and leave them exposed and accessible to the Customizer and third parties. [TEC-3011]
* Feature - Update hooked Customizer styles to account for surfaced CSS custom properties and for new TEC Customizer font controls. [TEC-3897]
* Language - 0 new strings added, 1 updated, 0 fuzzied, and 0 obsoleted