Update UI for support tab.

Bug: 29397123
Bug: 29832054

- Increase spinner dropdown width to contain country names.
- Reduce suggestion counter's right padding.
- Tweak paddings in travel abroad phone dialog.
- Update icon and text for help&feedback / tips&tricks.

Change-Id: Ide52c6f8198d1a13a0fdeb000d7cb9e8c03688ca

src/com/android/settings/support/SupportPhoneDialogFragment.java

@@ -51,12 +51,13 @@ public final class SupportPhoneDialogFragment extends DialogFragment implements
                 .setTitle(R.string.support_international_phone_title);
         final View content = LayoutInflater.from(builder.getContext())
                 .inflate(R.layout.support_phone_dialog_content, null);
+        final View phoneNumberContainer = content.findViewById(R.id.phone_number_container);
         final TextView phoneView = (TextView) content.findViewById(R.id.phone_number);
         final String formattedPhoneNumber = getContext().getString(
                 R.string.support_phone_international_format,
                 new Locale(phone.language).getDisplayLanguage(), phone.number);
         phoneView.setText(formattedPhoneNumber);
-        phoneView.setOnClickListener(this);
+        phoneNumberContainer.setOnClickListener(this);
         return builder
                 .setView(content)
                 .create();