QA: Enhancements

Default PIATunnel port

Update jazzy YAML with new additions

Add new translations

QA: Redeem

Fix inverted strings in signup screen

Title <-> Subtitle in all translations but English.

Restore receipt background overlay

Override X-center constraint.

This reverts commit 93fff6b5.

Resolve "Trim welcome fields before submission"

More semantically clear.

Also update text fields with trimmed string.

Improve localization submission with some tricks

In case it changes.

Resolve "Add sibling links to redeem page"

Breaks manual redeem page exclusion, but simplifies sibling links.

index = log2(page)

Makes credentials redundant otherwise.

Set keyboard and content type for welcome fields

Redeem email had wrong keyboard. Add content type where
applicable.

Disable code signing in Demo

Make it work on simulator without much hassle.