moved main from cmd to main.go

cmd/steamimmich.go

@@ -1,4 +1,4 @@
-package main
+package cmd
 
 import (
 	"log"
@@ -18,7 +18,7 @@ type args struct {
 	Album       string `arg:"--album" help:"UUID of a album to upload to"`
 }
 
-func main() {
+func Run() {
 	var args args
 	arg.MustParse(&args)