Refactor enum usage in pictorial chart composer

Replaces explicit enum type references with shorthand dot notation for AAChartType, AAChartAlignType, AAChartLayoutType, and AAChartVerticalAlignType in AAPictorialChartComposer.swift to improve code readability and conciseness.

Author: AAChartModel

AAInfographics-ProDemo/Demo/Composer/AAPictorialChartComposer.swift

@@ -13,7 +13,7 @@ class AAPictorialChartComposer: NSObject {
     static func pictorial1Chart() -> AAOptions {
         return AAOptions()
             .chart(AAChart()
-                .type(AAChartType.pictorial))
+                .type(.pictorial))
             .colors(["#B0FDFE", "#E3FED4", "#F9F492", "#FAF269", "#FAE146", "#FDA003"])
             .title(AATitle()
                 .text("Kelvin color temperature scale chart"))
@@ -24,14 +24,14 @@ class AAPictorialChartComposer: NSObject {
             .yAxis(AAYAxis()
                 .visible(true))
             .legend(AALegend()
-                .align(AAChartAlignType.right)
+                .align(.right)
                 .floating(true)
                 .itemMarginTop(5)
                 .itemMarginBottom(5)
-                .layout(AAChartLayoutType.vertical)
+                .layout(.vertical)
                 // .margin(0)
                 // .padding(0)
-                .verticalAlign(AAChartVerticalAlignType.middle))
+                .verticalAlign(.middle))
             .tooltip(AATooltip()
                 .headerFormat("")
                 .valueSuffix(" K"))
@@ -42,7 +42,7 @@ class AAPictorialChartComposer: NSObject {
                     // .borderWidth(0)
                     .dataLabels(AADataLabels()
                         .enabled(true)
-                        .align(AAChartAlignType.center)
+                        .align(.center)
                         .format("{y} K"))
                     .stacking("percent")
                     .paths([
@@ -57,7 +57,7 @@ class AAPictorialChartComposer: NSObject {
     static func pictorial2Chart() -> AAOptions {
         return AAOptions()
             .chart(AAChart()
-                .type(AAChartType.pictorial))
+                .type(.pictorial))
             .title(AATitle()
                 .text("Composition of the human body"))
             .xAxis(AAXAxis()
@@ -72,10 +72,10 @@ class AAPictorialChartComposer: NSObject {
             .legend(AALegend()
                 .itemMarginTop(15)
                 .itemMarginBottom(15)
-                .layout(AAChartLayoutType.vertical)
+                .layout(.vertical)
     // .padding(0)
-                .verticalAlign(AAChartVerticalAlignType.middle)
-                .align(AAChartAlignType.center)
+                .verticalAlign(.middle)
+                .align(.center)
                 // .margin(0)
             )
             .tooltip(AATooltip()
@@ -86,7 +86,7 @@ class AAPictorialChartComposer: NSObject {
                     .groupPadding(0)
                     .dataLabels(AADataLabels()
                         .enabled(true)
-                        .align(AAChartAlignType.center)
+                        .align(.center)
                         .format("{y} %"))
                     .stacking("normal")
                     .paths([