* implement Rpc API for parse_vcard
* allow to create Recipient from VcardContact
* display vcard view-type in incoming/outgoing messages
* fix linter warnings in Recipient class
* properly show vcard view-type in quoted messages
* display fallback avatar in quotes
* allow to attach vcard
* implement basic click listener
* timestamp type got changed from float to int
* set stick translation for "contact"
* share contact as vcard using the new Rpc.makeVcard API
* allow to import contact when clicking vcard
* show the device-update-message only once, not on every account switch
* instead of not adding device messages twice, always add and mark the chat as being noticed
* remove unused variable
* reword 'QR code' to 'Invite Code'
* reword adding classic email
* remove the 'new contact' things together
* add 'new classic contact' shortcut only for non-chatmail; it is still always available in the three-dot menu of 'new contact'
* use same menu for qr show/scan
* add 'new classic contact'
* remove 'scan' button from 'new classic contact' (ppl usually came from 'scan')
* rename to 'add contact manually'
* stay with 'qr code' for now
* add submenu to 'Explore Other Options'
* move 'Manual Login' to 'Explore Other Options'
* clearer titles, even if they are repetive
* move 'Scan QR' to 'Other'; this allows us to make 'Other' more outstanding
* cleanup layout
* tweak wording to 'Use Other Server' pointing to 'List in Browser', 'Classic Login', 'Scan Invite Code'
* use a standard secondary button for 'Use Other Server'
* show default onboarding server name
* reword to 'List Chatmail Servers'
* always close other-sign-up-options on tapping an option
* clarify that 'classic login' is about e-mail
* remove unused getConfig() variants
* hide IMAP folder options if is_chatmail == 1
* hide e2ee, show-system-contacts as well
* ignore system-contacts settings on chatmail (in case it was enabled before)
* fix bug: open WelcomeActivity when scanning backup from chatlist
* remove unused field manualConfigure
* remove unused code in startQrAccountCreation() and rename to startBackupTransfer()
* InstantOnboardingActivity: return to chatlist if not started from WelcomeActivity
* use OnBackPressedCallback
adding a shortcut is sometimes a request only,
the user has to confirm and/or there is a subsequent dialog.
so, when `requestPinShortcut()` returns successfully,
saying "Done" as the result of "Add to Home Screen" is often wrong
from the view of the user.
however, some feedback is still needed for the cases there are no dialogs.
saying "One moment..." covers both cases sufficiently.
Asiel Díaz Benítez