More add database reference dialog UI (#12066)

* add suppress missing dependencies checkbox

* add example usage

* set font-styles

* Fix typo

* allow example usage to be selectable

* don't localize example usage

* move example usage strings to a new section

extensions/sql-database-projects/src/common/uiConstants.ts

@@ -15,4 +15,10 @@ export namespace cssStyles {
 
 	export const addDatabaseReferenceDialogLabelWidth = '215px';
 	export const addDatabaseReferenceInputboxWidth = '220px';
+
+	// font-styles
+	export namespace fontStyle {
+		export const normal = 'normal';
+		export const italics = 'italic';
+	}
 }