fix: adjust notification UI colors and positions

1. Modified DropShadowText.qml to use theme-aware text colors with
appropriate opacity for better readability in both light and dark modes
2. Adjusted close button position in NotifyItemContent.qml by adding 2px
offset to fix visual alignment
3. Increased opacity of crystal theme background colors from 0.5 to 0.9
in both NotifyItemContent.qml and SettingActionButton.qml for better
visual contrast

Log: Improved notification UI readability and visual alignment

Influence:
1. Test notification display in both light and dark themes to ensure
text is readable
2. Verify close button positioning aligns properly with notification
items
3. Check background transparency effects in crystal theme mode
4. Test overall visual appearance of notification items and settings
buttons
5. Verify UI consistency across different theme modes

fix: 调整通知界面颜色和位置

1. 修改 DropShadowText.qml 使用主题感知的文本颜色，在亮色和暗色模式下都
提供更好的可读性
2. 调整 NotifyItemContent.qml 中关闭按钮位置，添加2像素偏移以修复视觉对
齐问题
3. 将 NotifyItemContent.qml 和 SettingActionButton.qml 中的水晶主题背景
颜色透明度从0.5增加到0.9，以获得更好的视觉对比度

Log: 改进通知界面可读性和视觉对齐

Influence:
1. 测试亮色和暗色主题下的通知显示，确保文本可读性
2. 验证关闭按钮位置是否与通知项正确对齐
3. 检查水晶主题模式下的背景透明度效果
4. 测试通知项和设置按钮的整体视觉外观
5. 验证不同主题模式下的界面一致性

Author: wjyrich

panels/notification/plugin/DropShadowText.qml

@@ -8,5 +8,7 @@ import org.deepin.dtk 1.0
 import org.deepin.ds.notificationcenter
 
 Text {
-    color: Qt.rgba(1, 1, 1, 1)
+    color: DTK.themeType === ApplicationHelper.DarkType ?
+    Qt.rgba(255, 255, 255, 0.7) :
+    Qt.rgba(0, 0, 0, 0.75)
 }

panels/notification/plugin/NotifyItemContent.qml

@@ -102,7 +102,7 @@ NotifyItem {
             id: closePlaceHolder
             anchors {
                 top: parent.top
-                topMargin: -height / 2
+                topMargin: -height / 2 + 2
                 right: parent.right
                 rightMargin: -width / 2 + 6
             }
@@ -149,10 +149,10 @@ NotifyItem {
                         color1: Palette {
                             normal {
                                 common: ("transparent")
-                                crystal: Qt.rgba(240 / 255.0, 240 / 255.0, 240 / 255.0, 0.5)
+                                crystal: Qt.rgba(240 / 255.0, 240 / 255.0, 240 / 255.0, 0.9)
                             }
                             normalDark {
-                                crystal: Qt.rgba(24 / 255.0, 24 / 255.0, 24 / 255.0, 0.5)
+                                crystal: Qt.rgba(24 / 255.0, 24 / 255.0, 24 / 255.0, 0.9)
                             }
                         }
                         color2: color1

panels/notification/plugin/SettingActionButton.qml

@@ -36,10 +36,10 @@ ActionButton {
         color1: Palette {
             normal {
                 common: ("transparent")
-                crystal: Qt.rgba(240 / 255.0, 240 / 255.0, 240 / 255.0, 0.5)
+                crystal: Qt.rgba(240 / 255.0, 240 / 255.0, 240 / 255.0, 0.9)
             }
             normalDark {
-                crystal: Qt.rgba(24 / 255.0, 24 / 255.0, 24 / 255.0, 0.5)
+                crystal: Qt.rgba(24 / 255.0, 24 / 255.0, 24 / 255.0, 0.9)
             }
         }