changing some new icons to vectors

app/src/main/res/drawable/ic_home_vector.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FFFFFFFF"
+      android:pathData="M10,20v-6h4v6h5v-8h3L12,3 2,12h3v8z"/>
+</vector>

app/src/main/res/drawable/shortcut_folder.xml

@@ -9,7 +9,7 @@
     <item
         android:id="@+id/shortcut_folder_image"
         android:bottom="@dimen/medium_margin"
-        android:drawable="@drawable/ic_folder_big"
+        android:drawable="@drawable/ic_folder_vector"
         android:left="@dimen/medium_margin"
         android:right="@dimen/medium_margin"
         android:top="@dimen/medium_margin"/>

app/src/main/res/menu/menu.xml

@@ -9,7 +9,7 @@
         app:showAsAction="collapseActionView|ifRoom"/>
     <item
         android:id="@+id/go_home"
-        android:icon="@drawable/ic_home"
+        android:icon="@drawable/ic_home_vector"
         android:title="@string/go_to_home_folder"
         app:showAsAction="ifRoom"/>
     <item