Add index on CaldavTask

data/src/commonMain/kotlin/org/tasks/data/db/Database.kt

@@ -61,8 +61,9 @@ import org.tasks.data.entity.UserActivity
     autoMigrations = [
         AutoMigration(from = 83, to = 84, spec = AutoMigrate83to84::class),
         AutoMigration(from = 88, to = 89, spec = AutoMigrate88to89::class),
+        AutoMigration(from = 89, to = 90),
     ],
-    version = 89
+    version = 90
 )
 abstract class Database : RoomDatabase() {
     abstract fun notificationDao(): NotificationDao

data/src/commonMain/kotlin/org/tasks/data/entity/CaldavTask.kt

@@ -3,6 +3,7 @@ package org.tasks.data.entity
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.ForeignKey
+import androidx.room.Index
 import androidx.room.PrimaryKey
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
@@ -21,6 +22,9 @@ import org.tasks.data.entity.Task.Companion.NO_ID
             childColumns = ["cd_task"],
             onDelete = ForeignKey.CASCADE,
         ),
+    ],
+    indices = [
+        Index(value = ["cd_calendar", "cd_remote_id"]),
     ]
 )
 data class CaldavTask(