Move react native source files in /src folder & aliased import

[floridemai]

Currently all application folders are relative to the root folder, which is not ideal (probably).
We should try and follow best practices and put all react native source files in /src folder and we'll end up with a nice structure for app, android, ios and config files.
While working on this maybe we should replaced relative imports with aliased one helping us with future refactors.e.g. ../../atoms => components/atoms

[jasnell]

@floridemai ... could I trouble you to add a bit more context here so others less familiar can understand a bit more.

[floridemai]

@floridemai ... could I trouble you to add a bit more context here so others less familiar can understand a bit more.

Sorry about that @jasnell . Had it as a placeholder and didn't update the comment in time. I did changed that now so we have a bit ofcontext