Welcome to the site, and welcome to the Edge club lol. As for the plant selections I wouldn't go with an Amazon Sword just because they're 1) heavy feeders, 2) are known to get huge, I would go with a Dwarf Sword like the Echinodorus parviflorus.
As for moss, it's up to what you like best. I personally love the look of christmass moss.
Riccia is fine, but overtime can over take a tank, I prefer to use it as an attachment plant to rocks, and attached with a cut up fish net.
As for lighting, I use 2 Finnex Epoch clip lights w/ 6500k bulbs.
Shrimp are cool little critters, I'm a big fan of super red cherry shrimp, and CRS.
As for fish you could get a couple Neon Tetras, I have them in my 55 gallon tank with my Ghost Shrimp, and no issues with the fish bothering the shrimp.
As for the filter, I'm going with the Finnex PX-360 mini canister filter. Got a 50w submersible heater and it works like a charm in my edge.
Really no need for the "bubbler" just because the plants will be enough to supply oxygen to the tank.
As for "plant food" I would go with the SeaChem Flourish line of plant products.
15g Fluval Flex - Will be a planted shrimp tank