Show total pages count (#164)

* Update pages.js

* show x of y pages found when showing partial results

---------
Co-authored-by: Ilya Kreymer <ikreymer@gmail.com>

src/pages.js

@@ -853,6 +853,17 @@ class Pages extends LitElement
   }
 
   formatResults() {
+    // Default behavior: Count all available pages
+    if (!this.query) {
+      const length = this.collInfo.pages.length;
+      if (length === this.sortedPages.length) {
+        return `${length} Page${length ? "s" : ""} Found`;
+      } else {
+        return `${this.sortedPages.length} of ${length} Pages Found`;
+      }
+    }
+
+    // ... unless they were filtered
     if (this.sortedPages.length === 1) {
       return "1 Page Found";
     } else {