Telegram-foss: If can't login without proxy, also can't set proxy before login

[thermatk]

In the wake of blocks in Russia, the built-in support for socks5 proxy became an important feature for a big amount of users, yet one can only set up proxies after the login sequence has been done. Since Telegram obviously can't login with its servers blocked, it is a closed circle.
The only way is to use a VPN for login even if the main approach for censorship circumvention will be a proxy afterwards.

[n8fr8]

Also, should consider adding NetCipher support for automatic integration with Orbot/Tor: https://github.com/guardianproject/netcipher

[thermatk]

https://github.com/Telegram-FOSS-Team/Telegram-FOSS/commit/6a3827a73e1c483ad251610a6fbdae6e34cec6e6 fixed

[thermatk]

@n8fr8 patches/PRs would be accepted for this, but bear in mind the whole internet connection stuff is hidden in native code here