[Cherry-pick] Fix Canvas blue outline when focused with Tab (#2450) (#2506)

Add a css property to disable the outline.

Fixes https://youtrack.jetbrains.com/issue/CMP-9040

## Testing
N/A

## Release Notes
#2450

Author: sekater

compose/ui/ui/src/webCommonW3C/kotlin/androidx/compose/ui/window/ComposeWindow.w3c.kt

@@ -733,6 +733,7 @@ fun ComposeViewport(
     val canvas = document.createElement("canvas") as HTMLCanvasElement
     canvas.setAttribute("tabindex", "0")
     canvas.setAttribute("role", "generic")
+    canvas.style.outline = "none" // Fixes https://youtrack.jetbrains.com/issue/CMP-9040
 
     // Create a common container (parent html element) for canvas and the interop container
     // to position at the same place - the interop container is position at 0,0 relative to <canvas>.