fix: 修复任务栏完全不透明时，点击企业微信，任务栏日志中有大量报错

透明窗口的边界是窗口透明度加上一个补偿值得到的,当透明窗口完全不透明时,加上补偿值可能大于255,为无效值,Qt则会警告

Log: 修复任务栏完全不透明时，点击企业微信，任务栏日志中有大量报错
Task: https://pms.uniontech.com/task-view-359813.html
Influence: 所有透明窗口 如通知中心,任务栏,启动器,剪切板
Change-Id: Ifec9207de75ac911e35c83231dd510d6da1f4e94

Author: Whale107

src/widgets/dblureffectwithborderwidget.cpp

@@ -31,7 +31,7 @@ DBlurEffectWithBorderWidget::DBlurEffectWithBorderWidget(QWidget *parent)
     auto setOuterBorderColor = [this, d, handle]() {
         auto outerBorderNewColor = outerBorderColor;
         if (d->themeType == DGuiApplicationHelper::ColorType::DarkType) {
-            outerBorderNewColor.setAlpha(maskAlpha() + ALPHA_OFFSET * 2);
+            outerBorderNewColor.setAlpha(maskAlpha() + ALPHA_OFFSET * 2 >= 255 ? maskAlpha() : maskAlpha() + ALPHA_OFFSET * 2);
         }
 
         handle->setBorderColor(outerBorderNewColor);
@@ -74,7 +74,7 @@ void DBlurEffectWithBorderWidget::paintEvent(QPaintEvent *e)
 
     auto innerBorderNewColor = innerBorderColor;
     if (d->themeType != DGuiApplicationHelper::DarkType) {
-        innerBorderNewColor.setAlpha(maskAlpha() + ALPHA_OFFSET);
+        innerBorderNewColor.setAlpha(maskAlpha() + ALPHA_OFFSET >= 255 ? maskAlpha() : maskAlpha() + ALPHA_OFFSET);
     }
 
     pen.setColor(innerBorderNewColor);