PLT-3633 EE: Add Google and Office365 SSO through OAuth2 (#3660)

* EE: Add Google and Office365 SSO through OAuth2

* Add localization strings

* Text tweaks for PLT-3633

* Added sign-up button for Office 365

* Updated some error messages and a bit of licensing

* Updated sign-in method section in user settings to include Google and Office365

* Added more localization strings

utils/config.go

@@ -238,7 +238,6 @@ func getClientConfig(c *model.Config) map[string]string {
 	props["RequireEmailVerification"] = strconv.FormatBool(c.EmailSettings.RequireEmailVerification)
 
 	props["EnableSignUpWithGitLab"] = strconv.FormatBool(c.GitLabSettings.Enable)
-	props["EnableSignUpWithGoogle"] = strconv.FormatBool(c.GoogleSettings.Enable)
 
 	props["ShowEmailAddress"] = strconv.FormatBool(c.PrivacySettings.ShowEmailAddress)
 
@@ -293,6 +292,14 @@ func getClientConfig(c *model.Config) map[string]string {
 			props["SamlLoginButtonText"] = *c.SamlSettings.LoginButtonText
 		}
 
+		if *License.Features.GoogleSSO {
+			props["EnableSignUpWithGoogle"] = strconv.FormatBool(c.GoogleSettings.Enable)
+		}
+
+		if *License.Features.Office365SSO {
+			props["EnableSignUpWithOffice365"] = strconv.FormatBool(c.Office365Settings.Enable)
+		}
+
 		if *License.Features.PasswordRequirements {
 			props["PasswordMinimumLength"] = fmt.Sprintf("%v", *c.PasswordSettings.MinimumLength)
 			props["PasswordRequireLowercase"] = strconv.FormatBool(*c.PasswordSettings.Lowercase)