intent: support share with Ring

Change-Id: Ic6536bcb3c822a4c4c77194a9a012e321cfabde8
diff --git a/ring-android/app/src/main/res/values/dimens.xml b/ring-android/app/src/main/res/values/dimens.xml
index 19d3715..2179bf1 100644
--- a/ring-android/app/src/main/res/values/dimens.xml
+++ b/ring-android/app/src/main/res/values/dimens.xml
@@ -45,4 +45,6 @@
 
     <dimen name="search_image_card_width">100dp</dimen>
     <dimen name="search_image_card_height">90dp</dimen>
+
+    <dimen name="share_preview_height">120dp</dimen>
 </resources>
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