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

- `.env.production.sample`:
  Our sample config file is very different from upstream since it is much more
  complete. Upstream added documentation for a few env variables.
  Copied the new variables/documentation from upstream.
- `app/lib/feed_manager.rb`:
  Upstream added a timeline type (hashtags), while glitch-soc already had an
  extra one (direct messages). Not really a conflict but textually close
  changes.
  Ported upstream's changes.
- `app/models/custom_emoji.rb`:
  Upstream upped the custom emoji size limit, while glitch-soc had configurable
  limits.
  Upped the default limits accordingly.
- `streaming/index.js`:
  Upstream reworked how hastags were normalized. Minor conflict due to
  glitch-soc's handling of instance-local posts.
  Ported upstream's changes.

package.json

@@ -65,7 +65,7 @@
     "fuzzysort": "^1.9.0",
     "glob": "^8.0.3",
     "history": "^4.10.1",
-    "http-link-header": "^1.0.4",
+    "http-link-header": "^1.0.5",
     "immutable": "^4.1.0",
     "imports-loader": "^1.2.0",
     "intersection-observer": "^0.12.2",
@@ -77,7 +77,7 @@
     "jsdom": "^20.0.0",
     "lodash": "^4.17.21",
     "mark-loader": "^0.1.6",
-    "marky": "^1.2.4",
+    "marky": "^1.2.5",
     "mini-css-extract-plugin": "^1.6.2",
     "mkdirp": "^1.0.4",
     "npmlog": "^6.0.2",
@@ -107,7 +107,7 @@
     "react-redux-loading-bar": "^4.0.8",
     "react-router-dom": "^4.1.1",
     "react-router-scroll-4": "^1.0.0-beta.1",
-    "react-select": "^5.3.2",
+    "react-select": "^5.4.0",
     "react-sparklines": "^1.7.0",
     "react-swipeable-views": "^0.14.0",
     "react-textarea-autosize": "^8.3.4",
@@ -144,14 +144,14 @@
     "@babel/eslint-parser": "^7.18.2",
     "@testing-library/jest-dom": "^5.16.4",
     "@testing-library/react": "^12.1.5",
-    "babel-jest": "^28.1.1",
+    "babel-jest": "^28.1.2",
     "eslint": "^7.32.0",
     "eslint-plugin-import": "~2.26.0",
     "eslint-plugin-jsx-a11y": "~6.6.0",
     "eslint-plugin-promise": "~6.0.0",
     "eslint-plugin-react": "~7.30.1",
-    "jest": "^28.1.1",
-    "jest-environment-jsdom": "^28.1.1",
+    "jest": "^28.1.2",
+    "jest-environment-jsdom": "^28.1.2",
     "postcss-scss": "^4.0.4",
     "prettier": "^2.7.1",
     "raf": "^3.4.1",