Replace DateTime with DateUtils (#32383)

services/context/context.go

@@ -100,6 +100,7 @@ func NewTemplateContextForWeb(ctx *Context) TemplateContext {
 	tmplCtx := NewTemplateContext(ctx)
 	tmplCtx["Locale"] = ctx.Base.Locale
 	tmplCtx["AvatarUtils"] = templates.NewAvatarUtils(ctx)
+	tmplCtx["DateUtils"] = templates.NewDateUtils(ctx)
 	tmplCtx["RootData"] = ctx.Data
 	tmplCtx["Consts"] = map[string]any{
 		"RepoUnitTypeCode":            unit.TypeCode,