FR: Add text entry based means of applying filters in Node Search

## [From Discord](https://discord.com/channels/1218270712402415686/1247306607709393017/1410548882731176036)

> could we have any type of expression or shorcut to activate filters in the quick search? Maybe something like # or @ to invoke a filter type.
> Imagine that I start typing #Comf... and quick search filters me every category that match that name. I select "Comfy Core" it and now nodes are restricted to that filter
> instead of clic, clic, clic, clic...

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-5245-FR-Add-text-entry-based-means-of-applying-filters-in-Node-Search-25d6d73d3650810e8623c686a7ade634) by [Unito](https://www.unito.io)