Rename class for code clarity

vector/src/main/java/im/vector/app/features/home/room/list/RoomListSectionBuilderGroup.kt

@@ -35,7 +35,7 @@ import org.matrix.android.sdk.api.session.room.UpdatableLivePageResult
 import org.matrix.android.sdk.api.session.room.model.Membership
 import org.matrix.android.sdk.rx.asObservable
 
-class GroupRoomListSectionBuilder(
+class RoomListSectionBuilderGroup(
         val session: Session,
         val stringProvider: StringProvider,
         val viewModelScope: CoroutineScope,

vector/src/main/java/im/vector/app/features/home/room/list/RoomListSectionBuilderSpace.kt

@@ -46,7 +46,7 @@ import org.matrix.android.sdk.api.session.room.model.Membership
 import org.matrix.android.sdk.api.session.room.summary.RoomAggregateNotificationCount
 import org.matrix.android.sdk.rx.asObservable
 
-class SpaceRoomListSectionBuilder(
+class RoomListSectionBuilderSpace(
         val session: Session,
         val stringProvider: StringProvider,
         val appStateHandler: AppStateHandler,

vector/src/main/java/im/vector/app/features/home/room/list/RoomListViewModel.kt

@@ -122,7 +122,7 @@ class RoomListViewModel @Inject constructor(
 
     val sections: List<RoomsSection> by lazy {
         if (appStateHandler.getCurrentRoomGroupingMethod() is RoomGroupingMethod.BySpace) {
-            SpaceRoomListSectionBuilder(
+            RoomListSectionBuilderSpace(
                     session,
                     stringProvider,
                     appStateHandler,
@@ -138,7 +138,7 @@ class RoomListViewModel @Inject constructor(
                     vectorPreferences.labsSpacesOnlyOrphansInHome()
             ).buildSections(initialState.displayMode)
         } else {
-            GroupRoomListSectionBuilder(
+            RoomListSectionBuilderGroup(
                     session,
                     stringProvider,
                     viewModelScope,