GraphQL: Add missing fields (#20646)

Went through the model and added all missing fields.

Except user.Password/MfaSecret/AuthData and session.TeamMembers.

```release-note
NONE
```

api4/schema.graphqls

@@ -38,6 +38,8 @@ scalar SidebarCategorySorting
 
 scalar StringMap
 
+scalar StringInterface
+
 scalar Time
 
 type Channel {
@@ -61,6 +63,9 @@ type Channel {
 	totalMsgCountRoot: Float!
 	lastRootPostAt: Float!
 	stats: ChannelStats
+	extraUpdateAt: Float!
+	props: StringInterface!
+	policyId: String
 	cursor: String
 }
 
@@ -82,6 +87,7 @@ type ChannelMember {
 	cursor: String
 }
 
+# Deliberately omitting password, authData, mfaSecret.
 type User {
 	id: String!
 	username: String!
@@ -89,20 +95,33 @@ type User {
 	firstName: String!
 	lastName: String!
 	nickname: String!
+	emailVerified: Boolean!
 	isBot: Boolean!
 	isGuest: Boolean!
 	isSystemAdmin: Boolean!
 	createAt: Float!
+	updateAt: Float!
 	deleteAt: Float!
 	authService: String!
 	customStatus: CustomStatus
 	status: Status
 	props: StringMap!
 	notifyProps: StringMap!
-	lastPictureUpdateAt: Float!
+	lastPictureUpdate: Float!
+	lastPasswordUpdate: Float!
+	failedAttempts: Float!
 	locale: String!
 	timezone: StringMap!
 	position: String!
+	mfaActive: Boolean!
+	allowMarketing: Boolean!
+	remoteId: String
+	lastActivityAt: Float!
+	botDescription: String!
+	botLastIconUpdate: Float!
+	termsOfServiceId: String!
+	termsOfServiceCreateAt: Float!
+	disableWelcomeEmail: Boolean!
 	roles: [Role]!
 	preferences: [Preference!]!
 	sessions: [Session]!
@@ -126,6 +145,11 @@ type Status {
 type Role {
 	id: String!
 	name: String!
+	displayName: String!
+	description: String!
+	createAt: Float!
+	updateAt: Float!
+	deleteAt: Float!
 	permissions: [String!]!
 	schemeManaged: Boolean!
 	builtIn: Boolean!
@@ -167,6 +191,7 @@ type TeamMember {
 	schemeGuest: Boolean!
 	schemeUser: Boolean!
 	schemeAdmin: Boolean!
+	explicitRoles: String!
 }
 
 type SidebarCategory {
@@ -180,11 +205,19 @@ type SidebarCategory {
 	channelIds: [String!]!
 }
 
+# Deliberately leaving out teamMembers.
 type Session {
 	id: String!
 	token: String!
 	createAt: Float!
 	expiresAt: Float!
+	lastActivityAt: Float!
+	deviceId: String!
+	roles: String!
+	isOAuth: Boolean!
+	expiredNotify: Boolean!
+	props: StringMap!
+	local: Boolean!
 }
 
 type ChannelStats {