Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `config/environments/production.rb`:
  Upstream changed a header but we had different default headers.
  Applied the same change, and also dropped HSTS headers redundant with
  Rails'.

package.json

@@ -61,11 +61,11 @@
   },
   "private": true,
   "dependencies": {
-    "@babel/core": "^7.16.7",
+    "@babel/core": "^7.16.12",
     "@babel/plugin-proposal-decorators": "^7.16.7",
     "@babel/plugin-transform-react-inline-elements": "^7.16.7",
-    "@babel/plugin-transform-runtime": "^7.16.8",
-    "@babel/preset-env": "^7.16.8",
+    "@babel/plugin-transform-runtime": "^7.16.10",
+    "@babel/preset-env": "^7.16.11",
     "@babel/preset-react": "^7.16.7",
     "@babel/runtime": "^7.16.7",
     "@gamestdio/websocket": "^0.3.2",
@@ -155,7 +155,7 @@
     "requestidlecallback": "^0.3.0",
     "reselect": "^4.1.5",
     "rimraf": "^3.0.2",
-    "sass": "^1.48.0",
+    "sass": "^1.49.0",
     "sass-loader": "^10.2.0",
     "stacktrace-js": "^2.0.2",
     "stringz": "^2.1.0",