fix every last warning in every last file (non-html at least)

WebBrowser/AppContainer.cs

@@ -1,6 +1,6 @@
 using EasyTabs;
 
-namespace WebBrowser
+namespace XeroBrowser
 {
     public partial class AppContainer : TitleBarTabs
     {
@@ -16,9 +16,9 @@ namespace WebBrowser
         {
             return new TitleBarTab(this)
             {
-                Content = new frmBrowser
+                Content = new FrmBrowser
                 {
-                    Text = "New tab"
+                    Text = @"New tab"
                 }
             };
         }