* core, ui: optionally use short links (#5799)
* core: optionally use short links
* update test
* update simplexmq, short group links
* fix query
* fix parser for _connect
* ios: use short links
* shorten links to remove fingerprint and onion hosts from known servers
* fix parser
* tests
* nix
* update query plans
* update simplexmq, simplex: schema for short links
* simplexmq
* update ios
* fix short links in ios
* android: use short links
* fix short group links, test short link connection plans
* core: fix connection plan to recognize own short links
* update simplexmq
* space
* all tests
* relative symlinks in simplexmq to fix windows build
* core: improve connection plan for short links (#5825)
* core: improve connection plan for short links
* improve connection plans
* update UI
* update simplexmq
* ios: add preset server domains to entitlements, add short link paths to .well-known/apple-app-site-association
* update simplexmq
* fix group short link in iOS, fix simplex:/ scheme saved to database or used for connection plans
* update simplexmq
* ios: delay opening URI from outside until the app is started
* update simplexmq
* ios: notifications service extension
* create notifications in NSE (WIP)
* refactor notifications to use in NSE
* prepend team ID to shared defaults name to silence the warning
* remove whitespace
* ios: get device token for push notifications
* ios: receive messages when background notification is received
* add notifications API, update simplexmq
* chat API to register and verify notification token
* update AppDelegate to recognize different notification types, update simplexmq
* core: api to enable periodic background notifications
* update simplexmq
* chat API to delete device notification token
* use base64url encoding in verification code
* update simplexmq for notifications