[v3] Add wails build info

v3/internal/commands/build.go

@@ -3,10 +3,13 @@ package commands
 import (
 	"os"
 
+	"github.com/pterm/pterm"
+
 	"github.com/wailsapp/wails/v3/internal/flags"
 )
 
 func Build(_ *flags.Build) error {
+	pterm.Info.Println("`wails build` is an alias for `wails task build`. Use `wails task` for much better control over your builds.")
 	os.Args = []string{"wails", "task", "build"}
 	return RunTask(&RunTaskOptions{}, []string{})
 }