chore(deps): update dependency immer to v9.0.21

Reviewed-on: #3

.gitignore

@@ -3,4 +3,4 @@
 node_modules
 public/build
 build-info.js
-.env
+yarn.lock

README.md

@@ -1,5 +1,7 @@
 # ScoreSaber Reloaded
 
+Forked from: <https://github.com/motzel/scoresaber-reloaded>
+
 ## Users
 
 Just go to [ssr.fascinated.cc](https://ssr.fascinated.cc)
@@ -9,11 +11,11 @@ Just go to [ssr.fascinated.cc](https://ssr.fascinated.cc)
 ### Install the dependencies
 
 ```bash
-yarn install
+npm install
 ```
 
 ### Start the dev environment
 
 ```bash
-yarn dev
+npm run dev
 ```

package-lock.json

@@ -707,18 +707,16 @@
       }
     },
     "node_modules/idb": {
-      "version": "6.1.2",
-      "resolved": "https://registry.npmjs.org/idb/-/idb-6.1.2.tgz",
-      "integrity": "sha512-1DNDVu3yDhAZkFDlJf0t7r+GLZ248F5pTAtA7V0oVG3yjmV125qZOx3g0XpAEkGZVYQiFDAsSOnGet2bhugc3w==",
-      "dev": true,
-      "license": "ISC"
+      "version": "6.1.5",
+      "resolved": "https://registry.npmjs.org/idb/-/idb-6.1.5.tgz",
+      "integrity": "sha512-IJtugpKkiVXQn5Y+LteyBCNk1N8xpGV3wWZk9EVtZWH8DYkjBn0bX1XnGP9RkyZF0sAcywa6unHqSWKe7q4LGw==",
+      "dev": true
     },
     "node_modules/immer": {
-      "version": "9.0.5",
-      "resolved": "https://registry.npmjs.org/immer/-/immer-9.0.5.tgz",
-      "integrity": "sha512-2WuIehr2y4lmYz9gaQzetPR2ECniCifk4ORaQbU3g5EalLt+0IVTosEPJ5BoYl/75ky2mivzdRzV8wWgQGOSYQ==",
+      "version": "9.0.21",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-9.0.21.tgz",
+      "integrity": "sha512-bc4NBHqOqSfRW7POMkHd51LvClaeMXpm8dx0e8oE2GORbq5aRK7Bxl4FyzVLdGtLmvLKL7BTDBG5ACQm4HWjTA==",
       "dev": true,
-      "license": "MIT",
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/immer"