Bug 1263873 - expand textbox for tag prefix in Feed account. ui-r=Paenglab, r=IanN

mailnews/extensions/newsblog/content/am-newsblog.xul

@@ -4,6 +4,7 @@
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
 <?xml-stylesheet href="chrome://messenger/skin/accountManage.css" type="text/css"?>
+<?xml-stylesheet href="chrome://messenger-newsblog/skin/feed-subscriptions.css" type="text/css"?>
 
 <!DOCTYPE page [
 <!ENTITY %         newsblogDTD SYSTEM "chrome://messenger-newsblog/locale/am-newsblog.dtd" >

suite/themes/classic/messenger/newsblog/feed-subscriptions.css

@@ -24,3 +24,7 @@
 #statusContainerBox {
   height: 24px;
 }
+
+#autotagPrefix {
+  width: 300px;
+}

suite/themes/modern/messenger/newsblog/feed-subscriptions.css

@@ -24,3 +24,7 @@
 #statusContainerBox {
   height: 24px;
 }
+
+#autotagPrefix {
+  width: 300px;
+}