Refactor task data handler to use TaskId as key instead of Task.

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ground-android/app/src/main/java/com/google/android/ground/ui/datacollection/TaskDataHandler.kt

Lines 60 to 61 in ce06a09

	// TODO: Refactor task data handler to use TaskId as key instead of Task.
	// Issue URL: https://github.com/google/ground-android/issues/3009

   * @param task The [Task] to retrieve data for.
   * @return The [TaskData] associated with the task, or `null` if no data is found.
   */
  @Deprecated("Use getData(taskId: String) instead")
  fun getData(task: Task): TaskData? = _dataState.value[task]

  // TODO: Refactor task data handler to use TaskId as key instead of Task.
  // Issue URL: https://github.com/google/ground-android/issues/3009
  fun getData(taskId: String): TaskData? =
    _dataState.value.filterKeys { it.id == taskId }.values.firstOrNull()

  /**
   * Returns a [TaskSelections] map representing the current state of task data.
   *