Strict Null Checks on platform/accounts (#6735)

* add some patches for strict null

* renable strict null checks

* wip

* finish adding account to strict nulls

* fix backup component

* wip

* fix tests

src/sql/workbench/api/common/sqlExtHostTypes.ts

@@ -581,8 +581,7 @@ export class ConnectionProfile {
 	options: { [name: string]: any };
 
 	static createFrom(options: any[]): ConnectionProfile {
-		// create from options
-		return undefined;
+		throw new Error('Method not implemented');
 	}
 }