Update the selected color of the Switcher component

Author: zsmb13

ui-components/src/commonMain/kotlin/org/jetbrains/kotlinconf/ui/components/Switcher.kt

@@ -45,7 +45,7 @@ private fun SwitcherItem(
         else KotlinConfTheme.colors.secondaryText,
     )
     val strokeColor by animateColorAsState(
-        if (selected) KotlinConfTheme.colors.strokeFull
+        if (selected) KotlinConfTheme.colors.strokeAccent
         else Color.Transparent,
     )
 

ui-components/src/commonMain/kotlin/org/jetbrains/kotlinconf/ui/theme/Colors.kt

@@ -45,6 +45,7 @@ class Colors(
     val scrollIndicatorFill: Color,
 
     val strokeFull: Color,
+    val strokeAccent: Color,
     val strokeInputFocus: Color,
     val strokeHalf: Color,
     val strokePale: Color,
@@ -80,6 +81,7 @@ val KotlinConfLightColors = Colors(
     scrollIndicatorFill = black15,
 
     strokeFull = black100,
+    strokeAccent = purple100,
     strokeInputFocus = black80,
     strokeHalf = black40,
     strokePale = black15,
@@ -115,6 +117,7 @@ val KotlinConfDarkColors = Colors(
     scrollIndicatorFill = white30,
 
     strokeFull = white100,
+    strokeAccent = purpleTextDark,
     strokeInputFocus = white80,
     strokeHalf = white50,
     strokePale = white20,