display isbn10s as well

frontend/files/app.js

@@ -137,6 +137,7 @@ function ISBNfromEAN(EAN) {
 
 function BookTemplate({
   "isbn-13": isbn13,
+  "isbn-10": isbn10,
   authors,
   coverURL,
   description,
@@ -153,7 +154,7 @@ function BookTemplate({
   <div class="bookDetails">
     <h1>${title}</h1>
     <h2>${authors}</h2>
-    <span>${isbn13}</span><br/>
+    <span>${[isbn10, isbn13].join(" / ")}</span><br/>
     <span>${publisher}, ${year}</span><br/>
     ${
       series
@@ -167,6 +168,7 @@ function BookTemplate({
 
 function TableRowTemplate({
   "isbn-13": isbn13,
+  "isbn-10": isbn10,
   authors,
   publisher,
   rowNumber,
@@ -183,7 +185,7 @@ function TableRowTemplate({
     <td class="author">${authors}</td>
     <td class="publisher">${publisher}</td>
     <td class="year">${year}</td>
-    <td class="isbn">${isbn13}</td>
+    <td class="isbn">${isbn13 ? isbn13 : isbn10}</td>
   </tr>`;
 }