Bring back username and RingID fields in config panel

It was deleted by mistake so it wasn't possible anymore
to enter an SIP username. This also display the RingID in
case of a Ring account.

Change-Id: I765ee261553249cb6fdec7f06bce1a11b53aaca1
Tuleap: #1312
diff --git a/stylesheet.css b/stylesheet.css
index 38198f8..2bd0e0e 100644
--- a/stylesheet.css
+++ b/stylesheet.css
@@ -504,7 +504,7 @@
 QLineEdit#lrcfg_mailbox, QLineEdit#lrcfg_tlsPassword, QLineEdit#lrcfg_tlsServerName,
 QLineEdit#lrcfg_turnServerRealm, QLineEdit#lrcfg_turnServerUsername, QLineEdit#lrcfg_turnServerPassword,
 QLineEdit#lrcfg_turnServer, QLineEdit#lrcfg_publishedAddress, QLineEdit#lrcfg_registeredName,
-QLineEdit#lrcfg_nameServiceURL{
+QLineEdit#lrcfg_nameServiceURL, QLineEdit#lrcfg_username{
     background: transparent;
     border-radius: 0px;
     border-style: solid;
@@ -528,7 +528,7 @@
 QLineEdit#lrcfg_proxy:focus, QLineEdit#lrcfg_mailbox:focus, QLineEdit#lrcfg_tlsPassword:focus,
 QLineEdit#lrcfg_tlsServerName:focus, QLineEdit#lrcfg_turnServerRealm:focus, QLineEdit#lrcfg_turnServerUsername:focus,
 QLineEdit#lrcfg_turnServerPassword:focus, QLineEdit#lrcfg_turnServer:focus, QLineEdit#lrcfg_publishedAddress:focus,
-QLineEdit#lrcfg_registeredName:focus, QLineEdit#lrcfg_nameServiceURL:focus{
+QLineEdit#lrcfg_registeredName:focus, QLineEdit#lrcfg_nameServiceURL:focus, QLineEdit#lrcfg_username:focus{
     border-color: #3AC0D2;
 }