Extract AggregatedReaction to its own file.

features/messages/src/main/kotlin/io/element/android/features/messages/timeline/model/AggregatedReaction.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.messages.timeline.model
+
+data class AggregatedReaction(
+    val key: String,
+    val count: String,
+    val isHighlighted: Boolean = false
+)

features/messages/src/main/kotlin/io/element/android/features/messages/timeline/model/TimelineItemReactions.kt

@@ -21,9 +21,3 @@ import kotlinx.collections.immutable.ImmutableList
 data class TimelineItemReactions(
     val reactions: ImmutableList<AggregatedReaction>
 )
-
-data class AggregatedReaction(
-    val key: String,
-    val count: String,
-    val isHighlighted: Boolean = false
-)