ssb: Show overall unread status on the hamburger menu.

apps/ssb.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🦀",
-	"previous": "&RkHUl/WRe0UpvTB2W6cw0f4AeupL/2PEI1pXg5PDXBg=.sha256"
+	"previous": "&gO8ganUDJtyGtfKUPRTbK2d34GJXhHKvHIZheF/lXI4=.sha256"
 }

apps/ssb/tf-tab-news.js

@@ -97,7 +97,11 @@ class TfTabNewsElement extends LitElement {
 	}
 
 	unread_status(channel) {
-		if (
+		if (channel === undefined) {
+			if (Object.keys(this.channels_unread).some(x => this.unread_status(x))) {
+				return '✉️ ';
+			}
+		} else if (
 			this.channels_latest[channel] &&
 			this.channels_latest[channel] > 0 &&
 			(this.channels_unread[channel] === undefined ||
@@ -315,7 +319,7 @@ class TfTabNewsElement extends LitElement {
 							class="w3-button w3-hide-large"
 							@click=${this.show_sidebar}
 						>
-							☰
+							${this.unread_status()}☰
 						</div>
 						Welcome, <tf-user id=${this.whoami} .users=${this.users}></tf-user>!
 						${edit_profile}