ci: desktop snapshots render animations at their end (#7916)

* ci: desktop snapshots render animations at their end

* ci: re-record the desktop snapshots of the loading link preview

apps/multiplatform/common/src/desktopTest/kotlin/chat/simplex/app/LayoutRecorder.kt

@@ -3,6 +3,7 @@ package chat.simplex.app
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.ImageComposeScene
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.MotionDurationScale
 import androidx.compose.ui.layout.FirstBaseline
 import androidx.compose.ui.layout.LastBaseline
 import androidx.compose.ui.layout.layout
@@ -12,6 +13,7 @@ import androidx.compose.ui.unit.Constraints
 import androidx.compose.ui.unit.Density
 import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.use
+import kotlinx.coroutines.Dispatchers
 import org.jetbrains.skia.Image
 import kotlin.math.roundToInt
 
@@ -27,8 +29,12 @@ fun Modifier.fixed(width: Int, height: Int, baseline: Int?): Modifier = layout {
   layout(width, height, if (baseline == null) emptyMap() else mapOf(FirstBaseline to baseline, LastBaseline to baseline)) { placeable.place(0, 0) }
 }
 
+private object InstantMotion : MotionDurationScale {
+  override val scaleFactor = 0f
+}
+
 fun renderScene(direction: LayoutDirection = LayoutDirection.Ltr, width: Int = 400, height: Int = 400, frames: Int = 1, content: @Composable () -> Unit): Image =
-  ImageComposeScene(width = width, height = height, density = Density(1f), layoutDirection = direction, content = content).use { scene ->
+  ImageComposeScene(width = width, height = height, density = Density(1f), layoutDirection = direction, coroutineContext = Dispatchers.Unconfined + InstantMotion, content = content).use { scene ->
     (0 until frames).map { scene.render(it * 1_000_000_000L) }.last()
   }