feat: google analytics (#15451)

* wip backend

* wip frontend

* build misskey-js

* implement control panel

* fix

* introduce analytics wrapper

* spdx

* Update analytics.ts

* Update common.ts

* wip

* wip

* wip

* wip

* wip

* Update CHANGELOG.md

---------

Co-authored-by: kakkokari-gtyih <67428053+kakkokari-gtyih@users.noreply.github.com>

packages/backend/migration/1739006797620-GoogleAnalytics.js

@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class GoogleAnalytics1739006797620 {
+    name = 'GoogleAnalytics1739006797620'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" ADD "googleAnalyticsMeasurementId" character varying(64)`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "googleAnalyticsMeasurementId"`);
+    }
+}