fixed errors in css

eslint.config.js

@@ -0,0 +1,67 @@
+module.exports = {
+  "parserOptions": {
+    "ecmaVersion": 2018
+  },
+  "env": {
+    "browser": true,
+    "es6": true,
+    "node": true,
+    "webextensions": true
+  },
+  "globals": {
+    "Utils": true,
+    "CustomizableUI": true,
+    "CustomizableWidgets": true,
+    "SessionStore": true,
+    "Services": true,
+    "Components": true,
+    "XPCOMUtils": true,
+    "OS": true,
+    "ADDON_UNINSTALL": true,
+    "ADDON_DISABLE": true,
+    "CONTAINER_ORDER_STORAGE_KEY": true,
+    "proxifiedContainers": true,
+    "MozillaVPN": true,
+    "MozillaVPN_Background": true
+  },
+  "plugins": [
+    "promise",
+    "no-unsanitized"
+  ],
+  "extends": [
+    "eslint:recommended"
+  ],
+  "root": true,
+  "rules": {
+    "linebreak-style": ["off"], // Disable linebreak-style rule
+    "promise/always-return": "off",
+    "promise/avoid-new": "off",
+    "promise/catch-or-return": "error",
+    "promise/no-callback-in-promise": "warn",
+    "promise/no-native": "off",
+    "promise/no-nesting": "warn",
+    "promise/no-promise-in-callback": "warn",
+    "promise/no-return-wrap": "error",
+    "promise/param-names": "error",
+
+    "no-unsanitized/method": ["error"],
+    "no-unsanitized/property": [
+      "error",
+      {
+        "escape": {
+          "taggedTemplates": ["Utils.escaped"]
+        }
+      }
+    ],
+
+    "eqeqeq": "error",
+    "indent": ["error", 2],
+    "no-throw-literal": "error",
+    "no-warning-comments": "warn",
+    "no-var": "error",
+    "prefer-const": "error",
+    "quotes": ["error", "double"],
+    "radix": "error",
+    "semi": ["error", "always"]
+  }
+};

src/css/popup.css

@@ -1530,6 +1530,7 @@ input[type=text] {
 .container-panel {
   min-block-size: 500px;
 }
+
 .sort-container-panel,
 .delete-container-panel,
 .clear-container-storage-panel {