Add "Send Feedback" menu item on discover cards in the feed.

PiperOrigin-RevId: 288922821
Change-Id: I4caa16d125f6a105c843ec637d24d3baa18d6ced

src/main/proto/search/now/ui/action/feed_action.proto

diff --git a/src/main/proto/search/now/ui/action/feed_action.proto b/src/main/proto/search/now/ui/action/feed_action.proto
index 3ff51be..4fe4d3b 100644
--- a/src/main/proto/search/now/ui/action/feed_action.proto
+++ b/src/main/proto/search/now/ui/action/feed_action.proto
@@ -40,7 +40,7 @@
 }
 
 // Metadata needed by the host to handle the action.
-// Next Id: 9
+// Next Id: 18
 message FeedActionMetadata {
   // The type of action, used by the host to perform any custom logic needed for
   // a specific type of action.
@@ -68,6 +68,7 @@
     SHOW_TOOLTIP = 14;
     NOT_INTERESTED_IN = 15;
     SEE_SUGGESTED_SITES = 16;
+    SEND_FEEDBACK = 17;
     reserved 9, 10;  // Deprecated
   }
   optional Type type = 1;

src/main/proto/search/now/wire/feed/capability.proto

diff --git a/src/main/proto/search/now/wire/feed/capability.proto b/src/main/proto/search/now/wire/feed/capability.proto
index 32137a7..06298a7 100644
--- a/src/main/proto/search/now/wire/feed/capability.proto
+++ b/src/main/proto/search/now/wire/feed/capability.proto
@@ -22,7 +22,7 @@
 option java_outer_classname = "CapabilityProto";
 
 // Feature capability of either the client or the server.
-// Next ID: 12.
+// Next ID: 13.
 enum Capability {
   UNKNOWN_CAPABILITY = 0;
   BASE_UI = 1;
@@ -35,6 +35,7 @@
   CAROUSELS = 9;
   ELEMENTS = 10;
   CONTENT_ID_UNIFICATION = 11;
+  SEND_FEEDBACK = 12;
 
   reserved 3;
 }