menu_card_dir: translation of thumbnail title & alternative not possible

# Bug Report

## Prerequisites

* [ ] Can you reproduce the problem on TYPO3 v8.7 LTS
* [x] Can you reproduce the problem on TYPO3 v9.5 LTS
* [x] Did you [perform a cursory search](https://github.com/issues?q=is%3Aissue+user%3Abenjaminkott+repo%3Abenjaminkott%2Fbootstrap_package) to see if your bug or enhancement is already reported?

## Description

Using "Cards of Subpages" within a multilanguage website the thumbnail title & alternative in the default language is always shown and can't be translated into additional languages. Even after deleting the default language title & alternative and switching back to the translated meta data of the thumbnail image in fileadmin the wrong data keeps showing....only deleting and adding a new thumbnail image is generating correct translations after adding filemeta data translations before. (But this isn't mentioned anywhere to editors....)

## Steps to Reproduce

1. Add a thumbnail image in default language and add title and alternative
2. translate the page (Thumbnail image is not shown in tab apparence
3. switch to the frontend page and check the default language (title and alt are visible)
4. check the translated page and there is the default title and alternative
5. delete in BE the default title and alternative
6. add the needed translations to the thumbnail image in fileadmin
7. Clear all caches
8. in the default language the thumbnail in FE has the correct title & alternative
9. in the translated language the thumbnail in FE still has the old wrong default title

**Expected behavior:**
The thumbnail image has in all languages his specific translated title and alternative either via page settings or file metadata

**Actual behavior:**
mixed up translations, see above

## Versions
TYPO3 v 9.5.8 Bootstrap Package 11.0.0 - Translations in connected mode