ssb: Use most recent post timestamps to feature more relevant people to follow.

apps/ssb/tf-tab-news.js

@@ -128,21 +128,24 @@ class TfTabNewsElement extends LitElement {
 		return this.hash.startsWith('##') ? this.hash.substring(2) : undefined;
 	}
 
-	compare_follows(a, b) {
-		return a[1].followed - b[1].followed;
+	compare_follows() {
+		const now = new Date().valueOf();
+		return function (a, b) {
+			return (b[1].ts > now ? -1 : b[1].ts) - (a[1].ts > now ? -1 : a[1].ts);
+		};
 	}
 
 	suggested_follows() {
+		/*
+		** Filter out people who have used future timestamps so that they aren't
+		** pinned at the top.
+		*/
 		let self = this;
-		return Object.entries(this.users).filter(
-			(x) => (x[1].follow_depth > 1)
-		).sort(
-			self.compare_follows
-		).slice(
-			0, 8
-		).map(
-			(x) => (x[0])
-		);
+		return Object.entries(this.users)
+			.filter((x) => x[1].follow_depth > 1)
+			.sort(self.compare_follows())
+			.slice(0, 8)
+			.map((x) => x[0]);
 	}
 
 	render_sidebar() {