Don't allow focus on reader containers (closes #5727)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerViewer.kt

@@ -75,6 +75,7 @@ abstract class PagerViewer(val activity: ReaderActivity) : BaseViewer {
     init {
         pager.isVisible = false // Don't layout the pager yet
         pager.layoutParams = LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)
+        pager.isFocusable = false
         pager.offscreenPageLimit = 1
         pager.id = R.id.reader_pager
         pager.adapter = adapter

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonViewer.kt

@@ -83,6 +83,7 @@ class WebtoonViewer(val activity: ReaderActivity, val isContinuous: Boolean = tr
     init {
         recycler.isVisible = false // Don't let the recycler layout yet
         recycler.layoutParams = ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT)
+        recycler.isFocusable = false
         recycler.itemAnimator = null
         recycler.layoutManager = layoutManager
         recycler.adapter = adapter