Add a nearby function on Kiwix

[kelson42]

It would be good if the Android app proposes the a list of articles talking about things which are in the neighbourhood (based on GPS geo position).

First reported at https://sourceforge.net/p/kiwix/feature-requests/910/

[jangalasriramd7]

hi Kelson,

Can i work on this enhancement

[kelson42]

@jangalasriramd7 Yes, please make a solution proposal here before anything else.