Add URL params parsing and concept of "embedded mode"

webassets/js/bands.js

@@ -243,6 +243,11 @@ function loadOptions() {
         })));
         $("#max-spot-age").val(options["web-ui-options"]["max-spot-age-default"] * 60);
 
+        // Load URL params. These may select things from the various filter & display options, so the function needs
+        // to be called after these are set up, but if the URL params ask for "embedded mode", this will suppress
+        // loading settings, so this needs to be called before that.
+        loadURLParams();
+
         // Load settings from settings storage now all the controls are available
         loadSettings();