Refactory server routes

[jzunigarce]

Details

• Create routes directory
• Put all routes in custom file on routes directory
• Fix static files in html

Append news routes

• Create file in routes directory. Set all routes and subroutes of resource in the object router. return object router
• In /routes/index.js call new the routes, define the path and export the new route

Fix static files

• In the dashboard.html file I added the relative path for the dashboard.css file. Add for all remaining static files.
• The directory for the static files is in /client/public. Example static link path: /css/dashboard