[enhancement] Add a place name in the HoverBubble

[enury]

When hovering over a dot on the map, the HoverBubble shows the title of the first feature + the number of colocated features.

We have decided to include a place name as well in the HoverBubble for three reasons:

1. The dots on the map may correspond to a precise settlement, or a larger region (e.g. the nome, the administrative division of land in ancient Egypt) and we needed to identify easily what a coordinate represents.
2. We work with ancient places, which do not often match their modern name.
3. The features are located in Egypt, where Open Street Map is in Arabic, and therefore places are not easy to read at a glance for everyone.

You can see two implementations:

1. A choice between Place + X items using a label in the geometry of a feature, or the original feature title + X more (see file).
2. The addition of the place name as place name - feature title + X more, using a label in a feature's properties (see file).