Range slider items don't appear in the facet summary

#16 works great!

However, I did notice the value suffix - and presumably, prefix - doesn't show up in the summary.
My Facet has a suffix of 'm2', and the summary just shows '22 - 60'.

While I don't care much about for example the seperator in between the min & max, I'd say adding the prefix and/or suffix to the summary makes sense.

The patch in comment #16 🐛 Range slider items don't appear in the facet summary Needs review works perfectly. Thank you.

I've made a MR to add the prefix and sufix to summary filter of range sliders.