refactor(server): flatten infra folders (#2120)

* refactor: flatten infra folders

* fix: database migrations

* fix: test related import

* fix: github actions workflow

* chore: rename schemas to typesense-schemas

server/libs/infra/src/migrations/1670607437008-TruncateOldConfigItems.ts

@@ -0,0 +1,11 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class TruncateOldConfigItems1670607437008 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`TRUNCATE TABLE "system_config"`);
+  }
+
+  public async down(): Promise<void> {
+    // noop
+  }
+}