Update browserslist

.stylelintrc

@@ -4,10 +4,7 @@ plugins:
   - stylelint-no-unsupported-browser-features
 
 rules:
-  plugin/no-unsupported-browser-features:
-    - true
-    - severity: warning
-      ignore: ['rem']
+  plugin/no-unsupported-browser-features: [true, {severity: warning}]
 
   color-hex-case: lower
   declaration-colon-newline-after: null

browserslist

@@ -1,5 +1,5 @@
 last 2 chrome versions
 last 2 firefox versions
 firefox esr
-ie >= 8
+ie >= 9
 safari >= 9

package.json

@@ -105,7 +105,7 @@
     "get-prod-locales": "node scripts/get-prod-locales",
     "get-prod-locales:write": "npm run get-prod-locales -- --write",
     "lint": "npm-run-all lint:*",
-    "lint:css": "stylelint 'public/*.css'",
+    "lint:css": "stylelint 'frontend/src/*.css'",
     "lint:js": "eslint .",
     "lint-locales": "node scripts/lint-locales",
     "lint-locales:dev": "npm run lint-locales",