refactor: crates (#4258)

* chore: rename flowy-folder2 to flowy-folder

* chore: rename flowy-document2 to flowy-document

* chore: fix test

* chore: move lib-infra crate

* chore: remove shared-lib

* chore: fix clippy

frontend/rust-lib/flowy-document/tests/assets/html/notion.html

@@ -0,0 +1,34 @@
+<meta charset='utf-8'><h1>The Notion Document</h1>
+<h1>Heading-1</h1>
+<h2>Heading - 2</h2>
+<h3>Heading - 3</h3>
+<p>This is a paragraph</p>
+<p>paragraph’s child</p>
+<ul><li>This is a bulleted list - 1<ul><li>This is a bulleted list - 1 - 1</li></ul></li><li>This is a bulleted list - 2</li></ul>
+<p>This is a paragraph</p>
+<ul><li>[ ]  This is a todo - 1<ul><li>[ ]  This is a paragraph - 1-1</li></ul></li></ul>
+<ol><li>This is a numbered list -1</li></ol>
+<p>This is a paragraph</p>
+<ul><li><p>This is a toggle list</p><p>This is a toggle child</p></li>
+</ul>
+<blockquote><p>This is a quote</p><p>This is a quote child</p></blockquote>
+<p>This is a paragraph</p>
+<hr>
+<pre><code class="language-jsx">// This is the main function.
+fn main() {
+    // Print text to the console.
+    **println**!(&quot;Hello World!&quot;);
+}</code></pre>
+<p>This is a paragraph</p>
+<p>&lt;aside&gt;
+    💡 callout</p>
+<p>&lt;/aside&gt;</p>
+<p>This is a paragraph font-color bg-color <strong>bold</strong> <em>italic underline <s>strike-through</s> <code>inline-code</code> $inline-formula$ <a href="https://www.notion.so/The-Notion-Document-d4236da306b84f6199e4091705042d78?pvs=21">link</a></em></p>
+<p>$$
+    |x| = \begin{cases}
+    x, &amp;\quad x \geq 0 \\
+    -x, &amp;\quad x &lt; 0
+    \end{cases}
+    $$</p>
+<p>End</p>
+<!-- notionvc: 0b0229d7-b98a-4e36-8a64-f944de21ef0e -->