feat(message): add border theme variable for message types

[blackawn]

给 message 新增 各类型的 border 变量，同时删除了 .n-message-wrapper 一些用不上的 -n-icon-color-[type] 图标颜色 style 变量，最终可以配置到如下的效果，关闭 #7105

{
  "Message": {
    "borderInfo": "1px solid #3b82f6",
    "borderSuccess": "1px solid #22c55e",
    "borderWarning": "1px solid #eab308",
    "borderError": "1px solid #ef4444",
    "borderLoading": "1px solid #10b981",
    "colorInfo": "#eff6ffFF",
    "colorSuccess": "#f0fdf4FF",
    "colorWarning": "#fefce8FF",
    "colorLoading": "#ecfdf5FF",
    "colorError": "#fef2f2FF",
    "iconColorLoading": "#059669FF",
    "iconColorWarning": "#ca8a04FF",
    "iconColorSuccess": "#16a34aFF",
    "iconColorInfo": "#2563ebFF",
    "iconColorError": "#dc2626FF",
    "textColorInfo": "#1d4ed8FF",
    "textColorSuccess": "#15803dFF",
    "textColorWarning": "#a16207FF",
    "textColorError": "#b91c1cFF",
    "textColorLoading": "#047857FF"
  }
}

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