Mongo Shell Fixes (#738)

* initial commit for mongo shell refactor

* multile tabs for terminals

* added notebooks enabled check

* added vnet check

* minor edits

* removed console log

* fixes

* hide main 'open mongo shell' button

* addressed PR comments

* Added check for iprules and other fixes

* Updated snapshot

* addressed PR comments

* format errors fixed

src/Explorer/Panes/GitHubReposPanel/__snapshots__/GitHubReposPanel.test.tsx.snap

@@ -831,6 +831,7 @@ exports[`GitHub Repos Panel should render Default properly 1`] = `
             "isResourceTokenCollectionNodeSelected": [Function],
             "isSchemaEnabled": [Function],
             "isServerlessEnabled": [Function],
+            "isShellEnabled": [Function],
             "isSparkEnabled": [Function],
             "isSparkEnabledForAccount": [Function],
             "isSynapseLinkUpdating": [Function],