* Use OS default Sans-Serif font instead of Google Nunito Sans Font
* Link calendar event locations to OSM instead of Google Maps
Better would be to use https://www.mediawiki.org/wiki/GeoHack – which is used
by WikiPedia to show an interactive selector for the mapping service to use –,
but it requires geo coordinates. Some systems also support generic geo:-URIs,
but they require coodinates and outside Android support is pretty spotty
(Apple wants you to use Apple Maps links instead, desktop platforms generally
require installed third-party apps …). Android does support an extension (`?q=`)
(https://developer.android.com/guide/components/intents-common#Maps) to search
by address via geo:-links though.
This implements a basic CalDav UI, titled "Calendar". It allows creating new calendars and events with a start and end date, URL, location, and description.
You can also import and export ICS (VCALENDAR + VEVENT) files.
It allows editing the ICS directly, for power users.
Additionally, you can hide/display events from certain calendars, change their names and their colors. If there's no calendar created yet in your CalDav server (first-time setup), it'll automatically create one, titled "Calendar".
You can also change the display timezone for the calendar from the settings.
Finally, there's some minor documentation fixes and some other minor tweaks.
Closes#56Closes#89
