Draft: plugins/overview: Reuse KRunner manager
This will allow for more efficient querying, because we do not query twice and some plugins have a instance-local cache. Also, we do not run into threading issues, for example in libqalculate
This will allow for more efficient querying, because we do not query twice and some plugins have a instance-local cache. Also, we do not run into threading issues, for example in libqalculate