Cleanup address handling

Add phan config

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: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Fix js test execution

The app must not be started, otherwise random stuff breaks
as timers, http requests and DOM manipulation is done in
the background.

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

Fix loading status for Save attachments button

Enhanced doc

Add /api prefix to API routes

Extract Account::createTransport into a SmtpClientFactory class

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

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

Fix phpunit warnings and apply stricter CI checks

Since a few weeks I'm constantly seeing four warnings whenever
I attempt to run phpunit locally. As they didn't make out CI jobs
fail, nobody seemed to care. As that's a risky situation, I've
fixed all the reported warnings and - to ensure this doesn't happen
again - I've enabled failure on warnings.

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

Use Files icon for 'Add from Files' button

Signed-off-by: Jan-Christoph Borchardt <hey@jancborchardt.net>

Signed-off-by: Jan-Christoph Borchardt <hey@jancborchardt.net>

Remove unused code