Added full support of `Bot API 7.6 <https://core.telegram.org/bots/api-changelog#july-01-2024>`_

- Added the classes :class:`aiogram.types.paid_media.PaidMedia`,
    :class:`aiogram.types.paid_media_info.PaidMediaInfo`,
    :class:`aiogram.types.paid_media_preview.PaidMediaPreview`,
    :class:`aiogram.types.paid_media_photo.PaidMediaPhoto`
    and :class:`aiogram.types.paid_media_video.PaidMediaVideo`,
    containing information about paid media.
- Added the method :class:`aiogram.methods.send_paid_media.SendPaidMedia`
    and the classes :class:`aiogram.types.input_paid_media.InputPaidMedia`,
    :class:`aiogram.types.input_paid_media_photo.InputPaidMediaPhoto`
    and :class:`aiogram.types.input_paid_media_video.InputPaidMediaVideo`,
    to support sending paid media.
- Documented that the methods :class:`aiogram.methods.copy_message.CopyMessage`
    and :class:`aiogram.methods.copy_messages.CopyMessages` cannot be used to copy paid media.
- Added the field :code:`can_send_paid_media` to the class
    :class:`aiogram.types.chat_full_info.ChatFullInfo`.
- Added the field :code:`paid_media` to the classes
    :class:`aiogram.types.message.Message` and
    :class:`aiogram.types.external_reply_info.ExternalReplyInfo`.
- Added the class
    :class:`aiogram.types.transaction_partner_telegram_ads.TransactionPartnerTelegramAds`,
    containing information about Telegram Star transactions involving the Telegram Ads Platform.
- Added the field :code:`invoice_payload` to the class
    :class:`aiogram.types.transaction_partner_user.TransactionPartnerUser`,
    containing the bot-specified invoice payload.
- Changed the default opening mode for Direct Link Mini Apps.
- Added support for launching Web Apps via t.me link in the class
    :class:`aiogram.types.menu_button_web_app.MenuButtonWebApp`.
- Added the field :code:`section_separator_color` to the class :code:`ThemeParams`.
