Fix modal path id for calibre db filepicker

Fix SyncToken last-Book-id missing

cps/services/SyncToken.py

@@ -144,6 +144,8 @@ class SyncToken:
         except TypeError:
             log.error("SyncToken timestamps don't parse to a datetime.")
             return SyncToken(raw_kobo_store_token=raw_kobo_store_token)
+        except KeyError:
+            books_last_id = -1
 
         return SyncToken(
             raw_kobo_store_token=raw_kobo_store_token,

cps/templates/config_edit.html

@@ -20,7 +20,7 @@
         <input type="text" class="form-control" id="config_calibre_dir" name="config_calibre_dir" value="{% if config.config_calibre_dir != None %}{{ config.config_calibre_dir }}{% endif %}" autocomplete="off">
        {% if filepicker %}
         <span class="input-group-btn">
-          <button type="button" data-toggle="modal" id="converter_modal_path" data-link="config_calibre_dir" data-filefilter="metadata.db" data-target="#fileModal" id="library_path" class="btn btn-default"><span class="glyphicon glyphicon-folder-open"></span></button>
+          <button type="button" data-toggle="modal" id="calibre_modal_path" data-link="config_calibre_dir" data-filefilter="metadata.db" data-target="#fileModal" id="library_path" class="btn btn-default"><span class="glyphicon glyphicon-folder-open"></span></button>
         </span>
        {% endif %}
       </div>