Fix another case of reply to/cc handling

Fix autoconfig null check

Fix NPM deps

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

`no_null` should be `is_null`

Fixes https://github.com/nextcloud/mail/issues/589



Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Add missing /api prefix to API route

Fetch avatars from different sources

Fix 'make optimize-js'

To *optimize* js files we need webpack, which is a npm dev dependency and
thus we have to first install those.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Fixed subfolders collapsible

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

Add proper sourcemap support, esp. for unit test failures

Fix js tests by excluding build artefacts

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Update npm deps

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Fix rendering of original sender in reply body

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Fix js tests execution