[FEATURE]: Support for columns

[tushev]

What would you like to be added/improved?

Support for adding columns as on https://profilinator.rishav.dev. All existing blocks should be able to be put inside columns.

Describe the solution you'd like

<table>
<tr><td valign="top" width="33%">
### Frontend  
<div align="center">  
...
</div>
</td>
<td valign="top" width="33%">
### Backend  
<div align="center">  
... 
</div>
</td>
<td valign="top" width="33%">
### DevOps  
<div align="center">  
...
</div>
</td>
</tr></table>  

Additional context

No response