Fix marketplace floater to properly accommodate the FS plugin fail text

indra/newview/skins/default/xui/en/floater_marketplace.xml

@@ -163,7 +163,7 @@
       name="external_controls"
       top_delta="0"
       auto_resize="true"
-      width="585">
+      width="770">
       <text
         name="plugin_fail_text"
         follows="all"
@@ -189,7 +189,9 @@ for possible steps to resolve this issue.
         follows="all"
         layout="topleft"
         left="0"
+        initial_mime_type="text/html"
         name="webbrowser"
+        width="770"
         top="0"/>
     </layout_panel>
     <layout_panel name="status_bar" 
@@ -206,7 +208,7 @@ for possible steps to resolve this issue.
         parse_urls="false"
         text_color="0.4 0.4 0.4 1"
         top_pad="3"
-        width="495"/>
+        width="680"/>
       <progress_bar
         color_bar="0.3 1.0 0.3 1"
         follows="bottom|right"