[ticket/16944] Generate iconify bundle as needed via icons & assets bag

PHPBB3-16944

phpBB/adm/style/installer_footer.html

@@ -26,6 +26,7 @@ installLang = {
 <!-- IF S_ALLOW_CDN --><script>window.jQuery || document.write('\x3Cscript src="{T_ASSETS_PATH}/javascript/jquery-3.6.0.min.js">\x3C/script>');</script><!-- ENDIF -->
 <script src="{T_ASSETS_PATH}/javascript/core.js?assets_version={T_ASSETS_VERSION}"></script>
 <!-- INCLUDEJS admin.js -->
+{$ICONIFY_ICONS}
 {$SCRIPTS}
 
 </body>

phpBB/adm/style/overall_footer.html

@@ -47,6 +47,7 @@
 <!-- INCLUDEJS admin.js -->
 
 <!-- EVENT acp_overall_footer_after -->
+{$ICONIFY_ICONS}
 {$SCRIPTS}
 
 {% EVENT acp_overall_footer_body_after %}

phpBB/adm/style/simple_footer.html

@@ -21,6 +21,7 @@
 <script src="{T_ASSETS_PATH}/javascript/core.js?assets_version={T_ASSETS_VERSION}"></script>
 
 <!-- EVENT acp_simple_footer_after -->
+{$ICONIFY_ICONS}
 {$SCRIPTS}
 
 {% EVENT acp_simple_footer_body_after %}