refactor: migrate to typeorm 3.0 (#8443)

* wip

* wip

* wip

* Update following.ts

* wip

* wip

* wip

* Update resolve-user.ts

* maxQueryExecutionTime

* wip

* wip

packages/backend/src/server/api/endpoints/users/groups/show.ts

@@ -35,7 +35,7 @@ export const paramDef = {
 // eslint-disable-next-line import/no-default-export
 export default define(meta, paramDef, async (ps, me) => {
 	// Fetch the group
-	const userGroup = await UserGroups.findOne({
+	const userGroup = await UserGroups.findOneBy({
 		id: ps.groupId,
 	});
 
@@ -43,7 +43,7 @@ export default define(meta, paramDef, async (ps, me) => {
 		throw new ApiError(meta.errors.noSuchGroup);
 	}
 
-	const joining = await UserGroupJoinings.findOne({
+	const joining = await UserGroupJoinings.findOneBy({
 		userId: me.id,
 		userGroupId: userGroup.id,
 	});