fix: initialize mimetypes for tests

consts/mime_types.go

@@ -1,8 +1,8 @@
-package server
+package consts
 
 import "mime"
 
-func initMimeTypes() {
+func init() {
 	mt := map[string]string{
 		".mp3":  "audio/mpeg",
 		".ogg":  "audio/ogg",

server/server.go

@@ -23,7 +23,6 @@ type Server struct {
 
 func New(scanner *scanner.Scanner, ds model.DataStore) *Server {
 	a := &Server{Scanner: scanner, ds: ds}
-	initMimeTypes()
 	initialSetup(ds)
 	a.initRoutes()
 	a.initScanner()