feat: Add blog post functionality with Markdown support

- Introduced BlogPostNode to render blog posts with metadata and content.
- Updated graph.json to include new blog post nodes.
- Enhanced MarkdownRenderer to support code block options for max height.
- Added CSS styles for improved code block scrolling and syntax highlighting.
- Created example blog posts: "Markdown Formatting Test", "Welcome to My Blog", and "Building Interactive Node Graphs".
- Implemented dynamic loading of blog data from blogs.json.
- Updated WorkspaceNavigator to allow smooth panning over blog nodes.

website/data/blog/markdown-test.md

@@ -0,0 +1,125 @@
+---
+title: Markdown Formatting Test
+date: 2026-04-20
+author: Test Author
+tags: test, formatting, markdown
+---
+
+# Heading 1
+
+## Heading 2
+
+### Heading 3
+
+#### Heading 4
+
+##### Heading 5
+
+###### Heading 6
+
+## Text Formatting
+
+This is **bold text** and this is *italic text* and this is ***bold italic text***.
+
+Here's some `inline code` in a sentence.
+
+## Links
+
+Here's a [regular link](https://example.com) and here's a [YouTube link](https://youtube.com/watch?v=test).
+
+## Lists
+
+Unordered list:
+- First item
+- Second item
+- Third item
+
+Ordered list:
+1. First step
+2. Second step
+3. Third step
+
+## Code Blocks
+
+Standard JavaScript:
+```javascript
+const hello = "world";
+console.log(hello);
+
+function test() {
+    return true;
+}
+```
+
+Python with syntax highlighting:
+```python
+def hello_world():
+    print("Hello, World!")
+    return True
+```
+
+Code with max height (200px):
+```javascript {maxHeight: 200}
+// This is a long code block that will scroll
+const data = [1, 2, 3, 4, 5];
+
+function processData(arr) {
+    return arr.map(x => x * 2);
+}
+
+console.log(processData(data));
+
+// Adding more lines to demonstrate scrolling
+for (let i = 0; i < 10; i++) {
+    console.log(`Iteration ${i}`);
+}
+
+// Even more content
+const obj = {
+    name: "Test",
+    value: 42,
+    nested: {
+        deep: true
+    }
+};
+```
+
+## Blockquotes
+
+> This is a blockquote.
+> It can span multiple lines.
+> And continues here.
+
+## Horizontal Rule
+
+---
+
+## Images
+
+![Test Image](data/blog/media/test.png)
+
+## Mixed Content
+
+You can mix **bold**, *italic*, and `code` in the same paragraph. Here's a [link with **bold** text](https://example.com) too.
+
+### Nested Lists
+
+- Top level item
+- Another top level
+  - Nested item (if supported)
+  - Another nested
+
+1. Numbered item
+2. Another numbered
+   - Mixed with bullets
+   - More bullets
+
+## Special Characters
+
+Testing special chars: < > & " ' 
+
+## Long Paragraph
+
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
+
+Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.