Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/unique-string/readme.md

@@ -0,0 +1,32 @@
+# unique-string [![Build Status](https://travis-ci.org/sindresorhus/unique-string.svg?branch=master)](https://travis-ci.org/sindresorhus/unique-string)
+
+> Generate a unique random string
+
+
+## Install
+
+```
+$ npm install unique-string
+```
+
+
+## Usage
+
+```js
+const uniqueString = require('unique-string');
+
+uniqueString();
+//=> 'b4de2a49c8ffa3fbee04446f045483b2'
+```
+
+
+## API
+
+### uniqueString()
+
+Returns a 32 character unique string. Matches the length of MD5, which is [unique enough](https://stackoverflow.com/a/2444336/64949) for non-crypto purposes.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)