Filtering folder/tag names

The “filter” here should not be misunderstood with the automatic filters of Paperpile. I mean a “quick search” by filter.

As the number of folder and tags increases with the size of database gradually, it seems very useful to have the capability of filtering the folder/tag names (a quick search) to navigate to the desired folder quickly.
This can be accomplished by adding a capability to the existing search box so to keep the interface simple and clean.