Revert to SVG icon with improved design

- Change back from PNG to SVG for better n8n compatibility
- Update SVG icon with larger viewBox and Strike green color (#00D924)
- Improve lightning bolt design for better visibility

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

dist/nodes/Strike/Strike.node.js

@@ -8,7 +8,7 @@ class Strike {
         this.description = {
             displayName: 'Strike',
             name: 'strike',
-            icon: 'file:strike.png',
+            icon: 'file:strike.svg',
             group: ['transform'],
             version: 1,
             subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',