[MM-37984] Allow Desktop App to authenticate via external providers outside of the app on supported servers (#24140)

* [MM-37984] Allow Desktop App to authenticate via external providers outside of the app on supported servers

* PR feedback

* Add support for mattermost-dev protocol for development use

* Update server/channels/db/migrations/postgres/000110_create_desktop_tokens.up.sql

* Fix silly typo

* Update server/channels/db/migrations/postgres/000110_create_desktop_tokens.up.sql

* Remove storage of client token, only validate it on the client

* Update migrations

* Add concurrently create index

* Remove CONCURRENTLY for now

* Fix issue with changing history

* Remove old migration

* Use idempotent statement to drop old index

* Remove reference to old table

server/channels/store/store.go

@@ -87,6 +87,7 @@ type Store interface {
 	PostAcknowledgement() PostAcknowledgementStore
 	PostPersistentNotification() PostPersistentNotificationStore
 	TrueUpReview() TrueUpReviewStore
+	DesktopTokens() DesktopTokensStore
 }
 
 type RetentionPolicyStore interface {
@@ -650,6 +651,14 @@ type TokenStore interface {
 	RemoveAllTokensByType(tokenType string) error
 }
 
+type DesktopTokensStore interface {
+	GetUserId(token string, minCreatedAt int64) (*string, error)
+	Insert(token string, createdAt int64, userId string) error
+	Delete(token string) error
+	DeleteByUserId(userId string) error
+	DeleteOlderThan(minCreatedAt int64) error
+}
+
 type EmojiStore interface {
 	Save(emoji *model.Emoji) (*model.Emoji, error)
 	Get(ctx context.Context, id string, allowFromCache bool) (*model.Emoji, error)