Add more folders to strict compile (#8954)

* add more folders to strictire compile, add more strict compile options

* update ci

* remove unnecessary assertion

src/sql/platform/credentials/test/common/testCredentialsService.ts

@@ -42,7 +42,7 @@ export class TestCredentialsService implements ICredentialsService {
 }
 
 export class TestCredentialsProvider implements CredentialProvider {
-	handle: number;
+	handle: number = 0;
 
 	public storedCredentials: { [K: string]: Credential } = {};