[MM-52786] webapp/platform/client : Remove dev dependencies in favour of monorepo (#23393)

* init

* Update setupTests.ts

webapp/platform/client/jest.config.js

@@ -7,5 +7,5 @@ module.exports = {
     moduleNameMapper: {
         '^@mattermost/types/(.*)$': '<rootDir>/../types/src/$1',
     },
-    setupFiles: ['isomorphic-fetch'],
+    setupFiles: ['<rootDir>/src/setupTests.ts'],
 };

webapp/platform/client/package.json

@@ -18,13 +18,7 @@
     "directory": "webapp/platform/client"
   },
   "dependencies": {
-    "form-data": "4.0.0"
-  },
-  "devDependencies": {
-    "@babel/preset-typescript": "7.21.0",
-    "isomorphic-fetch": "3.0.0",
-    "jest": "*",
-    "nock": "*"
+    "form-data": "^4.0.0"
   },
   "peerDependencies": {
     "@mattermost/types": "*",

webapp/platform/client/src/setupTests.ts

@@ -0,0 +1,4 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import 'isomorphic-fetch';