Ran `meson format -e -i -r`. Signed-off-by: Evangelos Ribeiro Tzaras <devrtz@fortysixandtwo.eu> Part-of: <https://gitlab.gnome.org/GNOME/calls/-/merge_requests/798>
* Preliminary documentation of CallsCall and CallsMessageSource * Documentation and cleaning up of CallsCallData * Add data files and meson rules to create gtk-doc documentation * Move some macros from util.h to calls-message-source.h