feat: amneziawg 1.5 support (#1692)

* Version bump 4.2.1.0

* feat: add special handshake params to ui

* feat: finish adding params

* feat: android/ios & fix qml

* chore: fix android impl & update 3rd-prebuilt branch

* chore: trigger build with windows build

* fix: special handshake params to client

* chore: update submodule

* feat: s3, s4

* chore: update submodule

* feat: s3 s4 cont

* fix: kt set

* chore: update submodule

* feat: add default values for s3, s4

* fix: make new parameters optional

* chore: update submodules

* chore: restore translation files

* fix: fixed awg native config import with new junk

* chore: restore translation files

* AWG v1.5 Build

* refactoring: removed s3 s4 fileds from ui part

* chore: update link to amneziawg-apple

---------

Co-authored-by: pokamest <pokamest@gmail.com>
Co-authored-by: Mark Puha <p.mark95@gmail.com>
Co-authored-by: albexk <albexk@proton.me>
Co-authored-by: Mykola Baibuz <mykola.baibuz@gmail.com>

.gitmodules

@@ -7,6 +7,7 @@
 [submodule "client/3rd-prebuilt"]
 	path = client/3rd-prebuilt
 	url = https://github.com/amnezia-vpn/3rd-prebuilt
+	branch = feature/special-handshake
 [submodule "client/3rd/amneziawg-apple"]
 	path = client/3rd/amneziawg-apple
 	url = https://github.com/amnezia-vpn/amneziawg-apple