feat(accountNumber): Add account number to Account nav listing

Closes #474
IMO I kind of feel iffy about the class names being `current-search`/`current-result`.  Not so sure search/result (or even current) describe what's going on here best. 

However it's definitely not a situation of **title/subtitle** either. 

So, excuse my lack of suggestive solution to my own issue, just wanted to point it out.