Update spelling (#3911)

* Update login_controller.jsx

* Update en.json

webapp/components/login/login_controller.jsx

@@ -534,7 +534,7 @@ export default class LoginController extends React.Component {
                     error={
                         <FormattedMessage
                             id='login.noMethods'
-                            defaultMessage='No sign in methods are enabled. Please contact your System Administrator.'
+                            defaultMessage='No sign-in methods are enabled. Please contact your System Administrator.'
                         />
                     }
                     margin={true}

webapp/i18n/en.json

@@ -1408,7 +1408,7 @@
   "login.noEmailUsername": "Please enter your email or username",
   "login.noEmailUsernameLdapUsername": "Please enter your email, username or {ldapUsername}",
   "login.noLdapUsername": "Please enter your {ldapUsername}",
-  "login.noMethods": "No sign in methods are enabled. Please contact your System Administrator.",
+  "login.noMethods": "No sign-in methods are enabled. Please contact your System Administrator.",
   "login.noPassword": "Please enter your password",
   "login.noUsername": "Please enter your username",
   "login.noUsernameLdapUsername": "Please enter your username or {ldapUsername}",