Rework typescript to use modules

web UI now uses modules, and relies less on bodge to make things work.
Also fixes an issue where invites where "failed to send to xx" appeared
in invite form.

data/templates/admin.html

@@ -31,11 +31,11 @@
                 return "";
             }
             {{ if .bs5 }}
-            var bsVersion = 5;
+            window.bsVersion = 5;
             {{ else }}
-            var bsVersion = 4;
+            window.bsVersion = 4;
             {{ end }}
-            var cssFile = "{{ .cssFile }}";
+            window.cssFile = "{{ .cssFile }}";
             var css = document.createElement('link');
             css.setAttribute('rel', 'stylesheet');
             css.setAttribute('type', 'text/css');
@@ -465,27 +465,19 @@
                 <p>{{ .contactMessage }}</p>
             </div>
         </div>
-        <script src="common.js"></script>
-            <script>
-            var availableProfiles = [];
+        <script>
+            window.bs5 = {{ .bs5 }};
+            window.availableProfiles = [];
             {{ if .notifications }}
-            var notifications_enabled = true;
+            window.notifications_enabled = true;
             {{ else }}
-            var notifications_enabled = false;
+            window.notifications_enabled = false;
             {{ end }}
         </script>
-        {{ if .bs5 }}
-        <script src="bs5.js"></script>
-        {{ else }}
-        <script src="bs4.js"></script>
-        {{ end }}
-        <script src="animation.js"></script>
-        <script src="accounts.js"></script>
-        <script src="invites.js"></script>
-        <script src="admin.js"></script>
-        <script src="settings.js"></script>
+        <script src="admin.js" type="module"></script>
+        <script src="invites.js" type="module"></script>
         {{ if .ombiEnabled }}
-        <script src="ombi.js"></script>
+        <script src="ombi.js" type="module"></script>
         {{ end }}
     </body>
 </html>