Shell: Integrate Cloudshell to existing shells (#2098)

* first draft

* refactored code

* ux fix

* add custom header support and fix ui

* minor changes

* hide last command also

* remove logger

* bug fixes

* updated loick file

* fix tests

* moved files

* update readme

* documentation update

* fix compilationerror

* undefined check handle

* format fix

* format fix

* fix lints

* format fix

* fix unrelatred test

* code refator

* fix format

* ut fix

* cgmanifest

* Revert "cgmanifest"

This reverts commit 2e76a6926ee0d3d4e0510f2e04e03446c2ca8c47.

* fix snap

* test fix

* formatting code

* updated xterm

* include username in command

* cloudshell add exit

* fix test

* format fix

* tets fix

* fix multiple open cloudshell calls

* socket time out after 20 min

* remove unused code

* 120 min

* Addressed comments

src/Platform/Hosted/extractFeatures.ts

@@ -39,6 +39,7 @@ export type Features = {
   readonly copilotChatFixedMonacoEditorHeight: boolean;
   readonly enablePriorityBasedExecution: boolean;
   readonly disableConnectionStringLogin: boolean;
+  readonly enableCloudShell: boolean;
 
   // can be set via both flight and feature flag
   autoscaleDefault: boolean;
@@ -110,6 +111,7 @@ export function extractFeatures(given = new URLSearchParams(window.location.sear
     copilotChatFixedMonacoEditorHeight: "true" === get("copilotchatfixedmonacoeditorheight"),
     enablePriorityBasedExecution: "true" === get("enableprioritybasedexecution"),
     disableConnectionStringLogin: "true" === get("disableconnectionstringlogin"),
+    enableCloudShell: "true" === get("enablecloudshell"),
   };
 }