Pre-Angular upgrade fixes (#5709)

* code fixes

* code fixes

* more code fixes

* even more fixes

* add missing typescript for cli

* rollback info drawer test changes

* use npx for cli commands

* restore attach providers

lib/core/clipboard/clipboard.directive.spec.ts

@@ -47,9 +47,6 @@ describe('ClipboardDirective', () => {
         ],
         declarations: [
             TestTargetClipboardComponent
-        ],
-        providers: [
-            ClipboardService
         ]
     });