feat: multiple oauth providers (#355)

* feat: add flag decoder (candidate)

* refactor: finalize flags decoder

* feat: add env decoder

* feat: add oauth config parsing logic

* feat: implement backend logic for multiple oauth providers

* feat: implement multiple oauth providers in the frontend

* feat: add some default icons

* chore: add credits for parser

* feat: style oauth auto redirect screen

* fix: bot suggestions

* refactor: rework decoders using simpler and more efficient pattern

* refactor: rework oauth name database migration

internal/service/generic_oauth_service.go

@@ -22,6 +22,7 @@ type GenericOAuthService struct {
 	verifier           string
 	insecureSkipVerify bool
 	userinfoUrl        string
+	name               string
 }
 
 func NewGenericOAuthService(config config.OAuthServiceConfig) *GenericOAuthService {
@@ -38,6 +39,7 @@ func NewGenericOAuthService(config config.OAuthServiceConfig) *GenericOAuthServi
 		},
 		insecureSkipVerify: config.InsecureSkipVerify,
 		userinfoUrl:        config.UserinfoURL,
+		name:               config.Name,
 	}
 }
 
@@ -115,3 +117,7 @@ func (generic *GenericOAuthService) Userinfo() (config.Claims, error) {
 
 	return user, nil
 }
+
+func (generic *GenericOAuthService) GetName() string {
+	return generic.name
+}