Fixed Unexpected sidebar behavior on database when filters selected

Device: PC
Browser: Firefox 91.0.2 (64-bit), Chrome 93.0.4577.63 (64-bit)
OS: Windows 10

When the page width is <= 1365px, the contents of the sidebar get moved to the main content. When no filters are selected everything works fine. When a filter is applied the sidebar contents disappear. After resizing all of them will be overlapping the first item in the list (or where the first item would be should be not be any results)

Steps to reproduce:
1) Open item database with the sidebar open.
2) Reduce window size to <= 1365px.
3) Scroll to bottom, the sidebar sections should be there.
3) Scroll to top and apply some filters
4) Scroll to bottom again and the sidebar sections are gone.
5) Scroll to top and resize window > 1365px
6) Resize window <= 1365px and the sidebar items will be back but overlapping each other

Anything else to add:
Don't know much about how isotope works internally. Looking at the DOM, the sidebar section are not at the same nesting as the database item, but that might be fine, idk offhand.

Added to fix list for v0.4-5. This is looking like my bad code not Isotope's