Adding list/join public/private teams permissions (#10309)

* Adding list/join public/private teams permissions

* Add permission migration and allow to migrate based on role name

* Adding JoinTeam new endpoint

* Addressing PR review comments

* Keep the previous API consistent

model/permission.go

@@ -33,6 +33,10 @@ var PERMISSION_CREATE_DIRECT_CHANNEL *Permission
 var PERMISSION_CREATE_GROUP_CHANNEL *Permission
 var PERMISSION_MANAGE_PUBLIC_CHANNEL_PROPERTIES *Permission
 var PERMISSION_MANAGE_PRIVATE_CHANNEL_PROPERTIES *Permission
+var PERMISSION_LIST_PUBLIC_TEAMS *Permission
+var PERMISSION_JOIN_PUBLIC_TEAMS *Permission
+var PERMISSION_LIST_PRIVATE_TEAMS *Permission
+var PERMISSION_JOIN_PRIVATE_TEAMS *Permission
 var PERMISSION_LIST_TEAM_CHANNELS *Permission
 var PERMISSION_JOIN_PUBLIC_CHANNELS *Permission
 var PERMISSION_DELETE_PUBLIC_CHANNEL *Permission
@@ -198,6 +202,30 @@ func initializePermissions() {
 		"authentication.permissions.manage_private_channel_properties.description",
 		PERMISSION_SCOPE_CHANNEL,
 	}
+	PERMISSION_LIST_PUBLIC_TEAMS = &Permission{
+		"list_public_teams",
+		"authentication.permissions.list_public_teams.name",
+		"authentication.permissions.list_public_teams.description",
+		PERMISSION_SCOPE_SYSTEM,
+	}
+	PERMISSION_JOIN_PUBLIC_TEAMS = &Permission{
+		"join_public_teams",
+		"authentication.permissions.join_public_teams.name",
+		"authentication.permissions.join_public_teams.description",
+		PERMISSION_SCOPE_SYSTEM,
+	}
+	PERMISSION_LIST_PRIVATE_TEAMS = &Permission{
+		"list_private_teams",
+		"authentication.permissions.list_private_teams.name",
+		"authentication.permissions.list_private_teams.description",
+		PERMISSION_SCOPE_SYSTEM,
+	}
+	PERMISSION_JOIN_PRIVATE_TEAMS = &Permission{
+		"join_private_teams",
+		"authentication.permissions.join_private_teams.name",
+		"authentication.permissions.join_private_teams.description",
+		PERMISSION_SCOPE_SYSTEM,
+	}
 	PERMISSION_LIST_TEAM_CHANNELS = &Permission{
 		"list_team_channels",
 		"authentication.permissions.list_team_channels.name",
@@ -505,6 +533,10 @@ func initializePermissions() {
 		PERMISSION_CREATE_GROUP_CHANNEL,
 		PERMISSION_MANAGE_PUBLIC_CHANNEL_PROPERTIES,
 		PERMISSION_MANAGE_PRIVATE_CHANNEL_PROPERTIES,
+		PERMISSION_LIST_PUBLIC_TEAMS,
+		PERMISSION_JOIN_PUBLIC_TEAMS,
+		PERMISSION_LIST_PRIVATE_TEAMS,
+		PERMISSION_JOIN_PRIVATE_TEAMS,
 		PERMISSION_LIST_TEAM_CHANNELS,
 		PERMISSION_JOIN_PUBLIC_CHANNELS,
 		PERMISSION_DELETE_PUBLIC_CHANNEL,