Add handling for owner role

commet/lib/client/matrix/matrix_role.dart

@@ -6,7 +6,11 @@ class MatrixRole implements Role {
   late int rank;
 
   MatrixRole(this.powerLevel, {String? nameOverride, IconData? iconOverride}) {
-    if (powerLevel >= 100) {
+    if (powerLevel >= 150) {
+      name = "Owner";
+      rank = 150;
+      icon = Icons.local_police;
+    } else if (powerLevel >= 100) {
       name = "Admin";
       rank = 100;
       icon = Icons.security;

commet/lib/client/matrix/matrix_room.dart

@@ -701,10 +701,31 @@ class MatrixRoom extends Room {
 
     var ids = roles.keys;
 
-    var result =
-        ids.map((e) => (getMemberOrFallback(e), MatrixRole(roles[e]))).toList();
+    List<(Member, MatrixRole)> result = List.empty(growable: true);
+
+    var creationEvent = _matrixRoom.states[matrix.EventTypes.RoomCreate]?[""];
+    var creator = creationEvent?.senderId;
+    var roomVersion = int.tryParse(_matrixRoom.roomVersion ?? "1");
+
+    if (roomVersion != null && roomVersion >= 12) {
+      if (_matrixRoom.roomVersion != null && creator != null) {
+        var additionalCreators =
+            creationEvent?.content.tryGetList<String>("additional_creators");
+
+        for (var id in [
+          creator,
+          if (additionalCreators != null) ...additionalCreators
+        ]) {
+          result.add((getMemberOrFallback(id), MatrixRole(150)));
+        }
+      }
+    }
+
+    result.addAll(ids
+        .map((e) => (getMemberOrFallback(e), MatrixRole(roles[e])))
+        .where((element) => element.$2.rank != 0));
 
-    result.removeWhere((element) => element.$2.rank == 0);
+    result;
 
     result.sort((a, b) => b.$2.rank.compareTo(a.$2.rank));
 

commet/lib/ui/pages/settings/categories/room/permissions/matrix/matrix_room_permissions_page.dart

@@ -51,6 +51,12 @@ class _MatrixRoomPermissionsPageState extends State<MatrixRoomPermissionsPage> {
   late List<MatrixRoomPermissionEntry> permissions;
   bool loading = false;
 
+  String get labelMatrixPermissionsRoleOwner => Intl.message(
+        "Owner",
+        name: "labelMatrixPermissionsRoleOwner",
+        desc: "Label for the room owner role",
+      );
+
   String get labelMatrixPermissionsRoleAdmin => Intl.message(
         "Admin",
         name: "labelMatrixPermissionsRoleAdmin",
@@ -236,10 +242,14 @@ class _MatrixRoomPermissionsPageState extends State<MatrixRoomPermissionsPage> {
 
   void initPermissions() {
     bool isCalendarRoom = widget.showCalendarPermissions;
+    var version = int.tryParse(widget.room.roomVersion ?? "1");
 
     roles = [
-      // MatrixRoomRoleEntry(
-      //     name: "Founder", powerlevel: 101, icon: Icons.star_rounded),
+      if (version != null && version >= 12)
+        MatrixRoomRoleEntry(
+            name: labelMatrixPermissionsRoleOwner,
+            powerlevel: 150,
+            icon: Icons.local_police),
       MatrixRoomRoleEntry(
         name: labelMatrixPermissionsRoleAdmin,
         powerlevel: 100,
@@ -250,14 +260,12 @@ class _MatrixRoomPermissionsPageState extends State<MatrixRoomPermissionsPage> {
         powerlevel: 50,
         icon: Icons.shield_rounded,
       ),
-
       if (isCalendarRoom)
         MatrixRoomRoleEntry(
           name: "Calendar Moderator",
           powerlevel: 25,
           icon: Icons.edit_calendar,
         ),
-
       MatrixRoomRoleEntry(
         name: labelMatrixPermissionsRoleMember,
         powerlevel: 0,