I will add that the mobile file should only contain changes you are making to Canvas Mobile Apps, keeping code separate between Browser and Mobile.
To follow up with @James - Loading jQuery in the Canvas Mobile apps isn't that straightforward. In fact, it's not for the faint of heart. IMHO, the community member with the most knowledge about Canvas Mobile apps and jQuery is @kenneth_larsen . Check out the following post to see if this helps you get any further: https://community.canvaslms.com/thread/18514-canvas-app-a-huge-disapointment#comment-78907
I'd love to help, but our school doesn't do any jQuery development with mobile, so my knowledge is limited. It would be nice if a community member could document this as this question comes up from time to time. Thanks.