Add settings page for managing forecasting API key and URL via UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/@babel/plugin-syntax-unicode-sets-regex/README.md

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+# @babel/plugin-syntax-unicode-sets-regex
+
+> Parse regular expressions' unicodeSets (v) flag.
+
+See our website [@babel/plugin-syntax-unicode-sets-regex](https://babeljs.io/docs/en/babel-plugin-syntax-unicode-sets-regex) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save-dev @babel/plugin-syntax-unicode-sets-regex
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/plugin-syntax-unicode-sets-regex --dev
+```