I installed the gnome-calendar app through snap and it doesn't start.
Output of `dmesg -w`
```
[632748.772120] audit: type=1400 audit(1625822731.031:18470): apparmor="DENIED" operation="open" profile="snap.gnome-calendar.gnome-calendar" name="/var/lib/snapd/hostfs/usr/lib/x86_64-linux-gnu/libGL.so.1.7.0" pid=726971 comm="gnome-calendar" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[632748.772122] audit: type=1400 audit(1625822731.031:18471): apparmor="DENIED" operation="open" profile="snap.gnome-calendar.gnome-calendar" name="/var/lib/snapd/hostfs/usr/lib/x86_64-linux-gnu/libEGL.so.1.1.0" pid=726971 comm="gnome-calendar" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[632748.774023] audit: type=1400 audit(1625822731.031:18472): apparmor="DENIED" operation="open" profile="snap.gnome-calendar.gnome-calendar" name="/var/lib/snapd/hostfs/usr/lib/x86_64-linux-gnu/libGLX.so.0.0.0" pid=726971 comm="gnome-calendar" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[632748.774025] audit: type=1400 audit(1625822731.031:18473): apparmor="DENIED" operation="open" profile="snap.gnome-calendar.gnome-calendar" name="/var/lib/snapd/hostfs/usr/lib/x86_64-linux-gnu/libGLdispatch.so.0.0.0" pid=726971 comm="gnome-calendar" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
```
Ok, after a logging out of the session and in again, it start now but it doesn't sync the calendars