http/https proxy (#7600)

* add http(s) proxy

* Add front-end translation

* fix ui description

* For linux platform, add rustls support

* fix: Fix the proxy address test function.

* add: Added default prompts for agency agreement and some multi-language translations

* add: Http proxy request client

* fix: add async http proxy func and format the code

* add: Preliminary support for flutter front-end calling rust back-end http request

* Optimize HTTP calls

* Optimize HTTP calls

* fix: Optimize HTTP requests, refine translations, and fix dependencies

src/lang/en.rs

@@ -60,6 +60,8 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Add to Favorites", "Add to favorites"),
         ("Remove from Favorites", "Remove from favorites"),
         ("Socks5 Proxy", "Socks5 proxy"),
+        ("Socks5/Http(s) Proxy", "Socks5/Http(s) proxy"),
+        ("Default protocol and port are Socks5 and 1080", "Default protocol and port are Socks5 and 1080"),
         ("install_daemon_tip", "For starting on boot, you need to install system service."),
         ("Are you sure to close the connection?", "Are you sure you want to close the connection?"),
         ("One-Finger Tap", "One-finger tap"),