terminal/kitty-gfx: do not send response on transmit/display unless I

src/terminal/kitty/graphics_exec.zig

@@ -146,6 +146,10 @@ fn transmit(
     // After the image is added, set the ID in case it changed
     result.id = load.image.id;
 
+    // If the original request had an image number, then we respond.
+    // Otherwise, we don't respond.
+    if (load.image.number == 0) return .{};
+
     return result;
 }
 
@@ -228,7 +232,8 @@ fn display(
         },
     }
 
-    return result;
+    // Display does not result in a response on success
+    return .{};
 }
 
 /// Display a previously transmitted image.

src/termio/Exec.zig

@@ -1115,7 +1115,7 @@ const StreamHandler = struct {
                     try resp.encode(buf_stream.writer());
                     const final = buf_stream.getWritten();
                     if (final.len > 2) {
-                        //log.warn("kitty graphics response: {s}", .{final[1 .. final.len - 1]});
+                        // log.warn("kitty graphics response: {s}", .{std.fmt.fmtSliceHexLower(final)});
                         self.messageWriter(try termio.Message.writeReq(self.alloc, final));
                     }
                 }