Migrate server to ESM

Sorry for the very big commit that may lead to git log issues and merge
conflicts, but it's a major step forward:

 * Server can be faster at startup because imports() are async and we can
   easily lazy import big modules
 * Angular doesn't seem to support ES import (with .js extension), so we
   had to correctly organize peertube into a monorepo:
    * Use yarn workspace feature
    * Use typescript reference projects for dependencies
    * Shared projects have been moved into "packages", each one is now a
      node module (with a dedicated package.json/tsconfig.json)
    * server/tools have been moved into apps/ and is now a dedicated app
      bundled and published on NPM so users don't have to build peertube
      cli tools manually
    * server/tests have been moved into packages/ so we don't compile
      them every time we want to run the server
 * Use isolatedModule option:
   * Had to move from const enum to const
     (https://www.typescriptlang.org/docs/handbook/enums.html#objects-vs-enums)
   * Had to explictely specify "type" imports when used in decorators
 * Prefer tsx (that uses esbuild under the hood) instead of ts-node to
   load typescript files (tests with mocha or scripts):
     * To reduce test complexity as esbuild doesn't support decorator
       metadata, we only test server files that do not import server
       models
     * We still build tests files into js files for a faster CI
 * Remove unmaintained peertube CLI import script
 * Removed some barrels to speed up execution (less imports)

packages/server-commands/src/videos/change-ownership-command.ts

@@ -0,0 +1,67 @@
+import { HttpStatusCode, ResultList, VideoChangeOwnership } from '@peertube/peertube-models'
+import { AbstractCommand, OverrideCommandOptions } from '../shared/index.js'
+
+export class ChangeOwnershipCommand extends AbstractCommand {
+
+  create (options: OverrideCommandOptions & {
+    videoId: number | string
+    username: string
+  }) {
+    const { videoId, username } = options
+    const path = '/api/v1/videos/' + videoId + '/give-ownership'
+
+    return this.postBodyRequest({
+      ...options,
+
+      path,
+      fields: { username },
+      implicitToken: true,
+      defaultExpectedStatus: HttpStatusCode.NO_CONTENT_204
+    })
+  }
+
+  list (options: OverrideCommandOptions = {}) {
+    const path = '/api/v1/videos/ownership'
+
+    return this.getRequestBody<ResultList<VideoChangeOwnership>>({
+      ...options,
+
+      path,
+      query: { sort: '-createdAt' },
+      implicitToken: true,
+      defaultExpectedStatus: HttpStatusCode.OK_200
+    })
+  }
+
+  accept (options: OverrideCommandOptions & {
+    ownershipId: number
+    channelId: number
+  }) {
+    const { ownershipId, channelId } = options
+    const path = '/api/v1/videos/ownership/' + ownershipId + '/accept'
+
+    return this.postBodyRequest({
+      ...options,
+
+      path,
+      fields: { channelId },
+      implicitToken: true,
+      defaultExpectedStatus: HttpStatusCode.NO_CONTENT_204
+    })
+  }
+
+  refuse (options: OverrideCommandOptions & {
+    ownershipId: number
+  }) {
+    const { ownershipId } = options
+    const path = '/api/v1/videos/ownership/' + ownershipId + '/refuse'
+
+    return this.postBodyRequest({
+      ...options,
+
+      path,
+      implicitToken: true,
+      defaultExpectedStatus: HttpStatusCode.NO_CONTENT_204
+    })
+  }
+}