Improve notebook link handling (#6087)

* Improve notebook link handling
- Single click now works for links inside Output areas
- Command links in untrusted notebooks have link color
- Refactored to use directive so code is in 1 place and can be easily
  added elsewhere if needed

* Removed unneeded service from constructor

src/sql/workbench/parts/notebook/notebook.module.ts

@@ -13,7 +13,6 @@ import { IBootstrapParams, ISelector, providerIterator } from 'sql/platform/boot
 import { CommonServiceInterface } from 'sql/platform/bootstrap/node/commonServiceInterface.service';
 import { EditableDropDown } from 'sql/platform/electron-browser/editableDropdown/editableDropdown.component';
 import { NotebookComponent } from 'sql/workbench/parts/notebook/notebook.component';
-
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { CodeComponent } from 'sql/workbench/parts/notebook/cellViews/code.component';
 import { CodeCellComponent } from 'sql/workbench/parts/notebook/cellViews/codeCell.component';
@@ -26,6 +25,7 @@ import LoadingSpinner from 'sql/workbench/electron-browser/modelComponents/loadi
 import { Checkbox } from 'sql/base/electron-browser/ui/checkbox/checkbox.component';
 import { SelectBox } from 'sql/platform/ui/electron-browser/selectBox/selectBox.component';
 import { InputBox } from 'sql/base/electron-browser/ui/inputBox/inputBox.component';
+import { LinkHandlerDirective } from 'sql/workbench/parts/notebook/cellViews/linkHandler.directive';
 
 export const NotebookModule = (params, selector: string, instantiationService: IInstantiationService): any => {
 	@NgModule({
@@ -43,7 +43,8 @@ export const NotebookModule = (params, selector: string, instantiationService: I
 			ComponentHostDirective,
 			OutputAreaComponent,
 			OutputComponent,
-			StdInComponent
+			StdInComponent,
+			LinkHandlerDirective
 		],
 		entryComponents: [NotebookComponent],
 		imports: [