ui: add "Documentation" button to main view

Similar to PVE and PMG, for quick access when one has the basic
webinterface open anyway. Should move to the "proxmoxHelpButton" once
we have an onlineHelp mapping to the docs.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

src/bin/proxmox-backup-proxy.rs

@@ -48,6 +48,7 @@ async fn run() -> Result<(), Error> {
     config.add_alias("xtermjs", "/usr/share/pve-xtermjs");
     config.add_alias("widgettoolkit", "/usr/share/javascript/proxmox-widget-toolkit");
     config.add_alias("css", "/usr/share/javascript/proxmox-backup/css");
+    config.add_alias("docs", "/usr/share/doc/proxmox-backup/html");
 
     let rest_server = RestServer::new(config);
 

www/MainView.js

@@ -133,6 +133,15 @@ Ext.define('PBS.MainView', {
 		    padding: '0 5',
 		    tpl: Ext.String.format(gettext("You are logged in as {0}"), "'{username}'")
 		},
+		{
+		    xtype: 'button',
+		    baseCls: 'x-btn',
+		    cls: 'x-btn-default-toolbar-small proxmox-inline-button',
+		    iconCls: 'fa fa-book x-btn-icon-el-default-toolbar-small ',
+		    text: gettext('Documentation'),
+		    href: '/docs/index.html',
+		    margin: '0 5 0 0',
+		},
 		{
 		    reference: 'logoutButton',
 		    xtype: 'button',