feat: add type to connection and account service

src/services/account.service.ts

@@ -81,11 +81,11 @@ export default class AccountService {
   }
 
   public async createIndexAccount(): Promise<any> {
-    const query = Q(ACCOUNTS_DOCTYPE)
+    const query: QueryDefinition = Q(ACCOUNTS_DOCTYPE)
       // eslint-disable-next-line @typescript-eslint/camelcase
       .where({ account_type: 'index' })
       .limitBy(1)
-    const { data: result } = await this._client.query(query)
+    const { data: result }: QueryResult<[]> = await this._client.query(query)
     return result
   }
 }

src/services/connection.service.ts

@@ -18,7 +18,7 @@ export default class ConnectionService {
   ): Promise<{ account: Account; trigger: Trigger }> {
     // Retrieve konnector
     const konnectorService = new KonnectorService(this._client)
-    const konnector: Konnector = await konnectorService.getKonnector(
+    const konnector: Konnector | null = await konnectorService.getKonnector(
       konnectorId
     )
     if (!konnector || !konnector.slug) {