Adds Edge browser warning to en_US locale

bigbluebutton-client/locale/en_US/bbbResources.properties

@@ -292,6 +292,7 @@ bbb.desktopPublish.maximizeRestoreBtn.toolTip = You cannot maximize this window.
 bbb.desktopPublish.closeBtn.toolTip = Stop Sharing and Close
 bbb.desktopPublish.chromeOnMacUnsupportedHint = Desktop sharing is not currently supported on Chrome running under Mac OS X. You must use a different web browser (Firefox recommended) to share your desktop.
 bbb.desktopPublish.chrome42UnsupportedHint = Chrome no longer supports Java Applets. You must use a different web browser (Firefox recommended) to share your desktop.
+bbb.desktopPublish.edgePluginUnsupportedHint = Edge does not support Java Applets. You must use a different web browser (Firefox recommended) to share your desktop.
 bbb.desktopPublish.minimizeBtn.toolTip = Minimize
 bbb.desktopPublish.minimizeBtn.accessibilityName = Minimize the Desktop Sharing Publish Window
 bbb.desktopPublish.maximizeRestoreBtn.accessibilityName = Maximize the Desktop Sharing Publish Window