highlight selected card

This commit ensures that the selected card should be highlighted on large screens only. By default first card should be highlighted

AnkiDroid/src/main/java/com/ichi2/anki/CardBrowser.kt

@@ -671,6 +671,8 @@ open class CardBrowser :
                 } else {
                     // load up the card selected on the list
                     saveScrollingState(position)
+                    // set selected position
+                    cardsAdapter.selectedPosition = position
                     openNoteEditorForCard(clickedCardId)
                 }
             }
@@ -1857,6 +1859,7 @@ open class CardBrowser :
     ) : BaseAdapter() {
         private var originalTextSize = -1.0f
         private val inflater: LayoutInflater
+        var selectedPosition: Int = 0
         override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
             // Get the main container view if it doesn't already exist, and call bindView
             val v: View
@@ -1884,8 +1887,10 @@ open class CardBrowser :
                     setFont(column as TextView) // set font for column
                     column.text = card.getColumnHeaderText(fromKeys[i]) // set text for column
                 }
+            // check whether the view is selected
+            val isHighLight = position == selectedPosition
             // set card's background color
-            val backgroundColor: Int = card.getBackgroundColor(this@CardBrowser)
+            val backgroundColor: Int = card.getBackgroundColor(this@CardBrowser, isHighLight)
             v.setBackgroundColor(backgroundColor)
             // setup checkbox to change color in multi-select mode
             val checkBox = v.findViewById<CheckBox>(R.id.card_checkbox)
@@ -2067,12 +2072,14 @@ open class CardBrowser :
          * @return index into TypedArray specifying the background color
          */
         @ColorInt
-        fun getBackgroundColor(context: Context): Int {
+        fun getBackgroundColor(context: Context, isHighlight: Boolean): Int {
             val flagColor = Flag.fromCode(card.userFlag()).browserColorRes
             if (flagColor != null) {
                 return context.getColor(flagColor)
             }
-            val colorAttr = if (isMarked(col, card.note(col))) {
+            val colorAttr = if (isHighlight) {
+                R.attr.currentDeckBackgroundColor
+            } else if (isMarked(col, card.note(col))) {
                 R.attr.markedColor
             } else if (card.queue == Consts.QUEUE_TYPE_SUSPENDED) {
                 R.attr.suspendedColor