Create pages module

[SimonLab]

Currently the Main.elm file contains all the logic of the application.
We have only 3 kind of pages but with new features coming this will certainly rapidly grow (e.g capture page, categorise page, about page, ...):

app-mvp-elm/src/Main.elm

Lines 31 to 34 in 7507bab

	type Page
	= Home
	| Auth (Maybe String)
	| NotFound

If we keep all the logic of the pages in the Main module it will be difficult to navigate the code.

Based on the projects structure of

• https://github.com/elm/package.elm-lang.org/tree/master/src/frontend
• https://github.com/rtfeldman/elm-spa-example https://dev.to/rtfeldman/tour-of-an-open-source-elm-spa

creating a module per page seems to be a good idea to manage the logic specific to a route.