update makefile and other tiny refactoring

- remove goccy/json dep
- add explicit types in gpu.go

beszel/internal/alerts/alerts_system.go

@@ -2,11 +2,11 @@ package alerts
 
 import (
 	"beszel/internal/entities/system"
+	"encoding/json"
 	"fmt"
 	"strings"
 	"time"
 
-	"github.com/goccy/go-json"
 	"github.com/pocketbase/dbx"
 	"github.com/pocketbase/pocketbase/core"
 	"github.com/pocketbase/pocketbase/tools/types"