👾 Fix url building logic

The user is more important than the alphabet. 😊 TraLa only uses the first URL it can build if more options are specified. Then it should have used the options in the order the user specifies, not alphabetical. It does now!

Technical details: if a router had multiple entryPoints specified, TraLa will build a URL based on the first entry point specified in the configuration for that router (no longer the one with the name sorted to first place).