CI failure unrelated to change

It compiles on Windows and macOS, so we can close this now.

Add more test cases to ensure coverage in olm event verification

Add comments on which code check which condition

fix l10n

ref for card contentItem

previous comments unaddressed

Verified that it does compile on Windows.

notify tracker model update on every change

guard against repeated actions

Prevent updating keys overriding trust level

Mark devices as verified when we want to send a done event

fix build

style fix

add tests

add missing implementations

conform to last diff and rebase

Automatically add outgoing events returned from the processing

the test failure is not the fault of this diff. the coverage job did pass, the failing is because of lilybuild.

Knowing whether an outgoing event is sent is of no use. It seems that we should add the outgoing events right away.

Only keep codes into model, leave pending events as return value