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/strip-indent/readme.md

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+# strip-indent [![Build Status](https://travis-ci.org/sindresorhus/strip-indent.svg?branch=master)](https://travis-ci.org/sindresorhus/strip-indent)
+
+> Strip leading whitespace from each line in a string
+
+The line with the least number of leading whitespace, ignoring empty lines, determines the number to remove.
+
+Useful for removing redundant indentation.
+
+
+## Install
+
+```
+$ npm install strip-indent
+```
+
+
+## Usage
+
+```js
+const stripIndent = require('strip-indent');
+
+const string = '\tunicorn\n\t\tcake';
+/*
+	unicorn
+		cake
+*/
+
+stripIndent(string);
+/*
+unicorn
+	cake
+*/
+```
+
+
+## Related
+
+- [strip-indent-cli](https://github.com/sindresorhus/strip-indent-cli) - CLI for this module
+- [indent-string](https://github.com/sindresorhus/indent-string) - Indent each line in a string
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)