Refactor axis title conversion in AAYAxis

Simplified the conversion from AATitle to AAAxisTitle in AAYAxis by directly mapping properties, improving code clarity and maintainability.

Author: AAChartModel

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AAXAxis.kt

@@ -30,7 +30,6 @@ open class AAXAxis: AAAxis() {
         return this
     }
 
-
     // 为了保持向后兼容性，添加对 AATitle 的支持
     // 同时添加方法废弃警告⚠️, 提示用户使用新的 AAAxisTitle 类型
     @Deprecated("Use `fun title(prop: AAAxisTitle): AAXAxis` instead. AATitle is deprecated for axis titles.")

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AAYAxis.kt

@@ -36,23 +36,19 @@ open class AAYAxis: AAAxis() {
         return this
     }
 
+
     // 为了保持向后兼容性，添加对 AATitle 的支持
     // 同时添加方法废弃警告⚠️, 提示用户使用新的 AAAxisTitle 类型
     @Deprecated("Use `fun title(prop: AAAxisTitle): AAYAxis` instead. AATitle is deprecated for axis titles.")
     fun title(prop: AATitle?): AAYAxis {
         if (prop != null) {
-            // 将AATitle转换为AAAxisTitle
+            // 将 AATitle 转换为 AAAxisTitle
             val axisTitle = AAAxisTitle()
                 .text(prop.text)
                 .style(prop.style)
-
-            // 如果AATitle有x和y属性, 也将它们设置到AAAxisTitle中
-            prop.x?.let { x ->
-                axisTitle.x(x)
-            }
-            prop.y?.let { y ->
-                axisTitle.y(y)
-            }
+                .x(prop.x)
+                .y(prop.y)
+                .useHTML(prop.useHTML)
 
             title = axisTitle
         } else {