Optimized MiniHUD Moon Translations

(Simplified Chinese Only) This resource pack fixes MiniHUD's {MOON} placeholder format error in Simplified Chinese, and replaces moon trend arrows with "-" at full/new moons. 本资源包修复了 MiniHUD 在简体中文下 {MOON} 的格式错误，并在满月/新月时将月相趋势箭头改为“-”。