fix: http/https proxy (#7821)

* 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

* fix: Win and macOS compilation errors

* fix: web platforms

* fix: Optimize import

* fix: Fix web platform issues

* fix: Fix web platform issues

* fix: update ci

* fix: test ci

* test: test CI

* Revert "fix: update ci"

This reverts commit 2e5f247b2ed0cc63a6f6f7bbaaffd0a1223712e5.

* test: test CI

* test: test CI

* fix: fix lock file

* fix: Optimize imports

flutter/lib/web/bridge.dart

@@ -770,6 +770,24 @@ class RustdeskImpl {
     throw UnimplementedError();
   }
 
+  Future<bool> mainGetProxyStatus({dynamic hint}) {
+    return Future(() => false);
+  }
+
+  Future<void> mainHttpRequest({
+    required String url,
+    required String method,
+    String? body,
+    required String header,
+    dynamic hint,
+  }) {
+    throw UnimplementedError();
+  }
+
+  Future<String?> mainGetHttpStatus({required String url, dynamic hint}){
+    throw UnimplementedError();
+  }
+
   String mainGetLocalOption({required String key, dynamic hint}) {
     return js.context.callMethod('getByName', ['option:local', key]);
   }