Bug 1610445 - follow up - fix properties button not working in chat accounts dialog. r=mkmelin DONTBUILD

mail/components/im/content/imAccounts.xhtml

@@ -30,6 +30,7 @@
   <script src="chrome://global/content/globalOverlay.js"/>
   <script src="chrome://global/content/editMenuOverlay.js"/>
   <script src="chrome://messenger/content/chat/imAccounts.js"/>
+  <script src="chrome://messenger/content/accountUtils.js"/>
   <script src="chrome://messenger/content/chat/imStatusSelector.js"/>
   <script src="chrome://global/content/nsTransferable.js" />
   <script src="chrome://chat/content/chat-account-richlistitem.js" />