fix: numberkeyboard styles in android

Author: rayhomie

src/NumberKeyboard/index.less

@@ -57,8 +57,8 @@
     }
     &_none {
       height: 80 * @rpx;
-      width: calc(100% - 96 * @rpx);
-      padding: 0 48 * @rpx;
+      width: calc(100% - @number-key-board-none-padding * 2);
+      padding: 0 @number-key-board-none-padding;
       font-size: 28 * @rpx;
       background-color: @number-key-board-iphonex-safe-background-color;
       display: flex;

src/NumberKeyboard/variable.less

@@ -1,6 +1,8 @@
 @import (reference) '../style/variables.less';
 @import (reference) '../style/themes/index.less';
 
+@number-key-board-none-padding: 48 * @rpx;
+
 // 标准字体颜色
 @number-key-board-text-color: var(
   --number-key-board-text-color,