iOS: native calls using WebRTC library and CallKit

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* Added translation using Weblate (Arabic)

* Translated using Weblate (French)

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v4.5.4: add support for observer role

* core: failing test for leaving and deleting the group joined via link

* fix test

* merge...

* android: group link role, add observer role

* padding

* disabled tint for buttons

* p...

* ios: group link role, add observer role

* prevent observers from sending in UI, clear compo...

* core: initial group member role when joining via link

* fix tests

* set role when joinin...

* terminal: update help, remove user ID from terminal /smp test command

* update mobile api
...

* ios: optionally show callkit calls in recents and update settings

* refactor, fix call erro...

* ios: CallKit changed reporting logic

* refactor, suspend chat after call when app is in bac...

* xftp: sending file completion status

* fix type

* fix type 2

* fix

* Revert "ios: CallKit enhancements (#2010)"

This reverts commit 840df89ca631eddb8c954fb89d7c...

* ios: CallKit enhancements

* better checks

* ios: CallKit integrated with app lock and screen protect

* better lock mechanics

* backg...

* xftp: send file descriptions when ready

* remove comments, update progress on completion

...

* ios: CallKit integration

* notifying CallKit about outgoing call

* changes

* switchin...

* core: process rcv file description

* refactor, groups

* view

* refactor

* update s...

* core: use XFTP to send and receive files

* xftp files progress

* xftp reception stubs, m...

* core: update agent protocol to parameterize by entity type

* update simplexmq

* core: types to support xftp

* migration, amend types

* update protocol / types

* upda...

* android: group link role, add observer role

* padding

* disabled tint for buttons

* p...

* website: add support for overlay hash in URL

* website: update the overlay hashes

* webs...

* android: UI to moderate messages to other members

* do not show moderate button on moderate...

* ios: UI to moderate messages of other members

* split moderate action

* do not show mode...

* ios: group link role, add observer role

* prevent observers from sending in UI, clear compo...

* core: initial group member role when joining via link

* fix tests

* set role when joinin...

* terminal: update help, remove user ID from terminal /smp test command

* update mobile api
...

* ios: native WebRTC

* add video showing

* make async function better working with main th...

* blog: SimpleX File Transfer Protocol (XFTP)

* update blog

* simplify quick start

* up...

* ios: import localizations

* re-export localizations

* add Czech language

* fix Czech ...

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* teminal: option to log errors and service messages to file, closes #1516

* rename function

* core: use 12 bytes IV for WebRTC frame encryption with AES-GCM

* refactor

Co-authored-by: +shyfire131 <[email protected]>

* website Internationalization (#1904)

* added devcontainer config

* internationalization ...

* core: update/fix webrtc frame encryption function to return error

* ios: update C header

...

* mobile: welcome/about page

* scroll view (fixes trimmed texts)

* layout

* bigger fram...

* core: WebRTC frames encryption

* test

* iOS: add Dutch language

* ios: re-export localizations

* enable Dutch in Android

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Currently translated at 100.0% (953 of 953 strings)

T...

* core: separate core options to use in bots

* ci: install pkg-config for mac

* terminal: support for multiline messages

* fix

* fix tests

* core: encrypt/decrypt WebRTC frames

* swift API

* add decrypt stub

* change name

*...

* apps: update chat bots, readme

* CLI readme

* broadcast bot

* delete messages from no...