Fix collapsing images taking extra clicks.

apps/ssb.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🐌",
-	"previous": "&h0sTvkhc3zEJw/sH612fy5i554Gr1AKzCBbLkm0KH28=.sha256"
+	"previous": "&YhfwSB0+2jmPcHlxOXN73/81H5VEyQ1MaTJmWZbwqHU=.sha256"
 }

apps/ssb/tf-message.js

@@ -172,7 +172,7 @@ class TfMessageElement extends LitElement {
 			event.srcElement.classList.contains('img_caption')
 		) {
 			let next = event.srcElement.nextSibling;
-			if (next.style.display == 'block') {
+			if (next.style.display != 'none') {
 				next.style.display = 'none';
 			} else {
 				next.style.display = 'block';