Factor out common styles; fixes and improvements to post-thread-view

src/view/lib/strings.ts

@@ -0,0 +1,9 @@
+export function pluralize(n: number, base: string, plural?: string): string {
+  if (n === 1) {
+    return base
+  }
+  if (plural) {
+    return plural
+  }
+  return base + 's'
+}