PLT-6958: Update Email Auth System Console settings texts (#6948)

* Update email_authentication_settings.jsx

* Update en.json

webapp/components/admin_console/email_authentication_settings.jsx

@@ -37,7 +37,7 @@ export default class EmailAuthenticationSettings extends AdminSettings {
         return (
             <FormattedMessage
                 id='admin.authentication.email'
-                defaultMessage='Email'
+                defaultMessage='Email Authentication'
             />
         );
     }
@@ -56,7 +56,7 @@ export default class EmailAuthenticationSettings extends AdminSettings {
                     helpText={
                         <FormattedMessage
                             id='admin.email.allowSignupDescription'
-                            defaultMessage='When true, Mattermost allows team creation and account signup using email and password.  This value should be false only when you want to limit signup to a single sign-on service like OAuth or AD/LDAP.'
+                            defaultMessage='When true, Mattermost allows account creation using email and password. This value should be false only when you want to limit sign up to a single sign-on service like AD/LDAP, SAML or GitLab.'
                         />
                     }
                     value={this.state.enableSignUpWithEmail}
@@ -90,7 +90,7 @@ export default class EmailAuthenticationSettings extends AdminSettings {
                     helpText={
                         <FormattedMessage
                             id='admin.email.allowUsernameSignInDescription'
-                            defaultMessage='When true, Mattermost allows users to sign in using their username and password.  This setting is typically only used when email verification is disabled.'
+                            defaultMessage='When true, users with email login can sign in using their username and password. This setting does not affect AD/LDAP login.'
                         />
                     }
                     value={this.state.enableSignInWithUsername}

webapp/i18n/en.json

@@ -142,7 +142,7 @@
   "admin.advance.metrics": "Performance Monitoring",
   "admin.audits.reload": "Reload User Activity Logs",
   "admin.audits.title": "User Activity Logs",
-  "admin.authentication.email": "Email Auth",
+  "admin.authentication.email": "Email Authentication",
   "admin.authentication.gitlab": "GitLab",
   "admin.authentication.ldap": "AD/LDAP",
   "admin.authentication.oauth": "OAuth 2.0",
@@ -259,9 +259,9 @@
   "admin.email.agreeHPNS": " I understand and accept the Mattermost Hosted Push Notification Service <a href=\"https://about.mattermost.com/hpns-terms/\" target='_blank'>Terms of Service</a> and <a href=\"https://about.mattermost.com/hpns-privacy/\" target='_blank'>Privacy Policy</a>.",
   "admin.email.allowEmailSignInDescription": "When true, Mattermost allows users to sign in using their email and password.",
   "admin.email.allowEmailSignInTitle": "Enable sign-in with email: ",
-  "admin.email.allowSignupDescription": "When true, Mattermost allows team creation and account signup using email and password.  This value should be false only when you want to limit signup to a single sign-on service like OAuth or AD/LDAP.",
+  "admin.email.allowSignupDescription": "When true, Mattermost allows account creation using email and password. This value should be false only when you want to limit sign up to a single sign-on service like AD/LDAP, SAML or GitLab.",
   "admin.email.allowSignupTitle": "Enable account creation with email: ",
-  "admin.email.allowUsernameSignInDescription": "When true, Mattermost allows users to sign in using their username and password.  This setting is typically only used when email verification is disabled.",
+  "admin.email.allowUsernameSignInDescription": "When true, users with email login can sign in using their username and password. This setting does not affect AD/LDAP login.",
   "admin.email.allowUsernameSignInTitle": "Enable sign-in with username: ",
   "admin.email.connectionSecurityTest": "Test Connection",
   "admin.email.easHelp": "Learn more about compiling and deploying your own mobile apps from an <a href=\"http://docs.mattermost.com/deployment/push.html#enterprise-app-store-eas\" target='_blank'>Enterprise App Store</a>.",