[Network Connection] Implement new UI changing

1. Change title to multi-lines display
2. Add "SingleSpecifiedSSID" mode, will have connect button
3. Don't pop error dialog, if there is connection failure. Let user
retry.
4. Hide progress icon if list item exists

Bug: 128586511
Test: atest NetworkRequestDialogFragmentTest
Change-Id: Icc560e4882fbcd941574e44690a27d5082a7c4c7

res/layout/network_request_dialog_title.xml

@@ -25,14 +25,12 @@
   <TextView
       android:id="@+id/network_request_title_text"
       android:layout_width="0dp"
-      android:layout_height="match_parent"
+      android:layout_height="wrap_content"
       android:paddingLeft="24dp"
       android:paddingTop="18dp"
       android:layout_weight="1"
       android:textSize="18sp"
       android:gravity="center_vertical"
-      android:maxLines="1"
-      android:ellipsize="end"
       style="@style/info_label"/>
 
   <ProgressBar