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

node_modules/mdast-util-definitions/readme.md

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+# mdast-util-definitions
+
+[![Build][build-badge]][build]
+[![Coverage][coverage-badge]][coverage]
+[![Downloads][downloads-badge]][downloads]
+[![Size][size-badge]][size]
+[![Sponsors][sponsors-badge]][collective]
+[![Backers][backers-badge]][collective]
+[![Chat][chat-badge]][chat]
+
+[mdast][] utility to find definitions by `identifier`.
+
+## Contents
+
+*   [What is this?](#what-is-this)
+*   [When should I use this?](#when-should-i-use-this)
+*   [Install](#install)
+*   [Use](#use)
+*   [API](#api)
+    *   [`definitions(tree)`](#definitionstree)
+    *   [`GetDefinition`](#getdefinition)
+*   [Types](#types)
+*   [Compatibility](#compatibility)
+*   [Security](#security)
+*   [Related](#related)
+*   [Contribute](#contribute)
+*   [License](#license)
+
+## What is this?
+
+This package is a tiny utility that lets you find definitions.
+
+## When should I use this?
+
+This utility can be useful because definitions can occur after the things that
+reference them.
+It’s small and protects against prototype pollution.
+
+## Install
+
+This package is [ESM only][esm].
+In Node.js (version 16+), install with [npm][]:
+
+```sh
+npm install mdast-util-definitions
+```
+
+In Deno with [`esm.sh`][esmsh]:
+
+```js
+import {definitions} from 'https://esm.sh/mdast-util-definitions@6'
+```
+
+In browsers with [`esm.sh`][esmsh]:
+
+```html
+<script type="module">
+  import {definitions} from 'https://esm.sh/mdast-util-definitions@6?bundle'
+</script>
+```
+
+## Use
+
+```js
+import {definitions} from 'mdast-util-definitions'
+import {fromMarkdown} from 'mdast-util-from-markdown'
+
+const tree = fromMarkdown('[example]: https://example.com "Example"')
+
+const definition = definitions(tree)
+
+definition('example')
+// => {type: 'definition', 'title': 'Example', …}
+
+definition('foo')
+// => undefined
+```
+
+## API
+
+This package exports the identifier [`definitions`][api-definitions].
+There is no default export.
+
+### `definitions(tree)`
+
+Find definitions in `tree`.
+
+Uses CommonMark precedence, which means that earlier definitions are
+preferred over duplicate later definitions.
+
+###### Parameters
+
+*   `tree` ([`Node`][node])
+    — tree to check
+
+###### Returns
+
+Getter ([`GetDefinition`][api-getdefinition]).
+
+### `GetDefinition`
+
+Get a definition by identifier (TypeScript type).
+
+###### Parameters
+
+*   `identifier` (`string`, optional)
+    — identifier of definition
+
+###### Returns
+
+Definition corresponding to `identifier` ([`Definition`][definition]) or
+`undefined`.
+
+## Types
+
+This package is fully typed with [TypeScript][].
+It exports the additional type  [`GetDefinition`][api-getdefinition].
+
+## Compatibility
+
+Projects maintained by the unified collective are compatible with maintained
+versions of Node.js.
+
+When we cut a new major release, we drop support for unmaintained versions of
+Node.
+This means we try to keep the current release line,
+`mdast-util-definitions@^6`, compatible with Node.js 16.
+
+## Security
+
+Use of `mdast-util-definitions` does not involve **[hast][]** or user content so
+there are no openings for [cross-site scripting (XSS)][xss] attacks.
+Additionally, safe guards are in place to protect against prototype poisoning.
+
+## Related
+
+*   [`unist-util-index`](https://github.com/syntax-tree/unist-util-index)
+    — index property values or computed keys to nodes
+
+## Contribute
+
+See [`contributing.md`][contributing] in [`syntax-tree/.github`][health] for
+ways to get started.
+See [`support.md`][support] for ways to get help.
+
+This project has a [code of conduct][coc].
+By interacting with this repository, organization, or community you agree to
+abide by its terms.
+
+## License
+
+[MIT][license] © [Titus Wormer][author]
+
+<!-- Definitions -->
+
+[build-badge]: https://github.com/syntax-tree/mdast-util-definitions/workflows/main/badge.svg
+
+[build]: https://github.com/syntax-tree/mdast-util-definitions/actions
+
+[coverage-badge]: https://img.shields.io/codecov/c/github/syntax-tree/mdast-util-definitions.svg
+
+[coverage]: https://codecov.io/github/syntax-tree/mdast-util-definitions
+
+[downloads-badge]: https://img.shields.io/npm/dm/mdast-util-definitions.svg
+
+[downloads]: https://www.npmjs.com/package/mdast-util-definitions
+
+[size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=mdast-util-definitions
+
+[size]: https://bundlejs.com/?q=mdast-util-definitions
+
+[sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg
+
+[backers-badge]: https://opencollective.com/unified/backers/badge.svg
+
+[collective]: https://opencollective.com/unified
+
+[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg
+
+[chat]: https://github.com/syntax-tree/unist/discussions
+
+[license]: license
+
+[author]: https://wooorm.com
+
+[npm]: https://docs.npmjs.com/cli/install
+
+[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
+
+[esmsh]: https://esm.sh
+
+[typescript]: https://www.typescriptlang.org
+
+[health]: https://github.com/syntax-tree/.github
+
+[contributing]: https://github.com/syntax-tree/.github/blob/main/contributing.md
+
+[support]: https://github.com/syntax-tree/.github/blob/main/support.md
+
+[coc]: https://github.com/syntax-tree/.github/blob/main/code-of-conduct.md
+
+[mdast]: https://github.com/syntax-tree/mdast
+
+[node]: https://github.com/syntax-tree/unist#node
+
+[definition]: https://github.com/syntax-tree/mdast#definition
+
+[xss]: https://en.wikipedia.org/wiki/Cross-site_scripting
+
+[hast]: https://github.com/syntax-tree/hast
+
+[api-definitions]: #definitionstree
+
+[api-getdefinition]: #getdefinition