Use default material3 version again and cleanup @OptIn annotations.

Material3 is now 1.1.0

features/createroom/impl/src/main/kotlin/io/element/android/features/createroom/impl/addpeople/AddPeopleView.kt

@@ -41,7 +41,6 @@ import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.designsystem.theme.components.TextButton
 import io.element.android.libraries.ui.strings.R as StringR
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun AddPeopleView(
     state: UserListState,

features/createroom/impl/src/main/kotlin/io/element/android/features/createroom/impl/configureroom/ConfigureRoomView.kt

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-@file:OptIn(ExperimentalMaterial3Api::class)
-
 package io.element.android.features.createroom.impl.configureroom
 
 import android.net.Uri
@@ -129,6 +127,7 @@ fun ConfigureRoomView(
     }
 }
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun ConfigureRoomToolbar(
     isNextActionEnabled: Boolean,

features/createroom/impl/src/main/kotlin/io/element/android/features/createroom/impl/root/CreateRoomRootView.kt

@@ -55,7 +55,6 @@ import io.element.android.libraries.matrix.api.core.RoomId
 import io.element.android.libraries.designsystem.R as DrawableR
 import io.element.android.libraries.ui.strings.R as StringR
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun CreateRoomRootView(
     state: CreateRoomRootState,