UK/US english in the plugin - synchronise vs. synchronize

[alex-cit]

There are both UK and US spelling of the word synchronise/synchronize used in the plugin:

The sync button in the toolbar uses synchronise

Browser uses synchronize

In the docs, we use UK english so I would prefer synchronise

This is also present in the mobile app: https://github.com/MerginMaps/mobile/issues/3404