Minor UI changes

app/src/main/res/color/stroke_color.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+	<item android:color="?attr/colorPrimary" android:state_checked="true"/>
+	<item android:alpha="0.12" android:color="?attr/colorOnSurface" android:state_checked="false"/>
+</selector>

app/src/main/res/layout/item_manga_grid.xml

@@ -2,8 +2,12 @@
 <com.google.android.material.card.MaterialCardView
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:tools="http://schemas.android.com/tools"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
 	android:layout_width="match_parent"
-	android:layout_height="wrap_content">
+	android:layout_height="wrap_content"
+	app:strokeWidth="1dp"
+	app:strokeColor="@color/stroke_color"
+	app:cardElevation="0dp">
 
 	<LinearLayout
 		android:layout_width="wrap_content"

app/src/main/res/layout/item_manga_list_details.xml

@@ -4,7 +4,10 @@
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	xmlns:tools="http://schemas.android.com/tools"
 	android:layout_width="match_parent"
-	android:layout_height="@dimen/manga_list_details_item_height">
+	android:layout_height="@dimen/manga_list_details_item_height"
+	app:strokeWidth="1dp"
+	app:strokeColor="@color/stroke_color"
+	app:cardElevation="0dp">
 
 	<LinearLayout
 		android:layout_width="match_parent"