Adjust wifi dialog for better accessibility

For some items, change the minHeight to 48dp. Also update text size
a little bit to fit the new height.

Change-Id: I87d3067c29d0d87eff6eadc4332984171e9fe4b6
Fixes: 79722015
Test: Build

res/layout/wifi_dialog.xml

@@ -291,7 +291,6 @@
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         style="@style/wifi_item_content"
-                        android:textSize="14sp"
                         android:text="@string/wifi_show_password" />
             </LinearLayout>
         </LinearLayout>

res/values/styles.xml

@@ -200,6 +200,7 @@
         <item name="android:textAlignment">viewStart</item>
         <item name="android:textAppearance">@android:style/TextAppearance.Material.Subhead</item>
         <item name="android:textColor">?android:attr/textColorPrimary</item>
+        <item name="android:minHeight">@dimen/min_tap_target_size</item>
     </style>
 
     <style name="wifi_item_spinner" parent="wifi_item_content">
@@ -219,6 +220,7 @@
         <item name="android:layout_marginStart">4dip</item>
         <item name="android:textSize">18sp</item>
         <item name="android:textAlignment">viewStart</item>
+        <item name="android:minHeight">@dimen/min_tap_target_size</item>
     </style>
 
     <style name="wifi_section">