Use Koin to retrieve `RelativeDateTimeFormatter`

package com.fsck.k9.view

import com.fsck.k9.ui.helper.RelativeDateTimeFormatter

import org.koin.dsl.module

val viewModule = module {

    single { WebViewConfigProvider(get()) }

    single { WebViewConfigProvider(themeManager = get()) }

    factory { RelativeDateTimeFormatter(context = get(), clock = get()) }

}

import androidx.appcompat.widget.PopupMenu;

import androidx.appcompat.widget.PopupMenu.OnMenuItemClickListener;

import com.fsck.k9.Account;

import com.fsck.k9.Clock;

import com.fsck.k9.DI;

import com.fsck.k9.activity.misc.ContactPicture;

import com.fsck.k9.contacts.ContactPictureLoader;

    private TextView dateView;

    private MessageHelper messageHelper;

    private final RelativeDateTimeFormatter relativeDateTimeFormatter;

    private RelativeDateTimeFormatter relativeDateTimeFormatter;

    private OnMenuItemClickListener onMenuItemClickListener;

        if (!isInEditMode()) {

            messageHelper = MessageHelper.getInstance(getContext());

            relativeDateTimeFormatter = DI.get(RelativeDateTimeFormatter.class);

        }

        relativeDateTimeFormatter = new RelativeDateTimeFormatter(getContext(), DI.get(Clock.class));

    }

    @Override