Refactor routing in App component to enhance navigation and improve error handling by integrating dynamic routes and updating the NotFound route.

node_modules/string-width/readme.md

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+# string-width
+
+> Get the visual width of a string - the number of columns required to display it
+
+Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
+
+Useful to be able to measure the actual width of command-line output.
+
+## Install
+
+```sh
+npm install string-width
+```
+
+## Usage
+
+```js
+import stringWidth from 'string-width';
+
+stringWidth('a');
+//=> 1
+
+stringWidth('古');
+//=> 2
+
+stringWidth('\u001B[1m古\u001B[22m');
+//=> 2
+```
+
+## API
+
+### stringWidth(string, options?)
+
+#### string
+
+Type: `string`
+
+The string to be counted.
+
+#### options
+
+Type: `object`
+
+##### ambiguousIsNarrow
+
+Type: `boolean`\
+Default: `true`
+
+Count [ambiguous width characters](https://www.unicode.org/reports/tr11/#Ambiguous) as having narrow width (count of 1) instead of wide width (count of 2).
+
+> Ambiguous characters behave like wide or narrow characters depending on the context (language tag, script identification, associated font, source of data, or explicit markup; all can provide the context). **If the context cannot be established reliably, they should be treated as narrow characters by default.**
+> - http://www.unicode.org/reports/tr11/
+
+##### countAnsiEscapeCodes
+
+Type: `boolean`\
+Default: `false`
+
+Whether [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) should be counted.
+
+## Related
+
+- [string-width-cli](https://github.com/sindresorhus/string-width-cli) - CLI for this module
+- [string-length](https://github.com/sindresorhus/string-length) - Get the real length of a string
+- [widest-line](https://github.com/sindresorhus/widest-line) - Get the visual width of the widest line in a string
+- [get-east-asian-width](https://github.com/sindresorhus/get-east-asian-width) - Determine the East Asian Width of a Unicode character