Add brand / store chains search suggestions / groupings

[pastk]

E.g. 2GIS (2ГИС) uses this approach and I find it very helpful.

Tapping on such grouping will show a map with only store chain selected (otherwise there are plenty of other unwanted results).
This way its very convenient to see on the map where is the nearest store or a store along your way.

Another example with multiple chains/sub-chains matching:

Here are different interesting groupings:

• a BK chain
• all burger places
• all places with burgers in menu