alx line 38 sorts the tags. Line 39 filters which tags are visible. The test on that lines shows all tags with a position (aka primary tags) that have either no parent, or are children of the active parent, or their are children of the parent of the currently active tag. Removing && (!tag.isChild() || (currentTag && (tag.parent() === currentTag || tag.parent() === currentTag.parent()))) should show all primary tags whether they are active or not.
After changing the javascript source code you need to recompile the dist files. You need to npm install the dependencies and run the npm run build command.
