Translations update from Weblate (#5390)

* [Web] Updated lang.de-de.json

Co-authored-by: Peter <magic@kthx.at>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.es-es.json

Co-authored-by: Marco Truffat <truffatmarco@gmail.com>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.hu-hu.json

[Web] Updated lang.hu-hu.json

[Web] Updated lang.hu-hu.json

Co-authored-by: 0xAndrewBlack <0xandrewblack@gmail.com>
Co-authored-by: Kántor Attila <attilalaci300@gmail.com>
Co-authored-by: Mihály Szilágyi <szimih90@gmail.com>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.ro-ro.json

Co-authored-by: Vlad M <vlad+mailcow@manoila.co.uk>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.ru-ru.json

Co-authored-by: Oleksii Kruhlenko <a.kruglenko@gmail.com>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.gr-gr.json

[Web] Added lang.gr-gr.json

Co-authored-by: Nik Beaver <nik@beavers.forsale>
Co-authored-by: Peter <magic@kthx.at>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.fr-fr.json

Co-authored-by: Adrien Kara <mailcow-translate@iglou.eu>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.en-gb.json

Co-authored-by: Philipp E <ph.ecker@philipp-dev.info>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.ca-es.json

Co-authored-by: Marco Truffat <truffatmarco@gmail.com>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.it-it.json

Co-authored-by: Michele Caputo <michele@caputoweb.xyz>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.uk-ua.json

Co-authored-by: Oleksii Kruhlenko <a.kruglenko@gmail.com>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* [Web] Updated lang.si-si.json

[Web] Updated lang.si-si.json

[Web] Updated lang.si-si.json

[Web] Added lang.si-si.json

Co-authored-by: Peter <magic@kthx.at>
Co-authored-by: gomiunik <boris@gomiunik.net>
Co-authored-by: milkmaker <milkmaker@mailcow.de>

* Add Greek + Slovenian

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Co-authored-by: Peter <magic@kthx.at>
Co-authored-by: Marco Truffat <truffatmarco@gmail.com>
Co-authored-by: 0xAndrewBlack <0xandrewblack@gmail.com>
Co-authored-by: Kántor Attila <attilalaci300@gmail.com>
Co-authored-by: Mihály Szilágyi <szimih90@gmail.com>
Co-authored-by: Vlad M <vlad+mailcow@manoila.co.uk>
Co-authored-by: Oleksii Kruhlenko <a.kruglenko@gmail.com>
Co-authored-by: Nik Beaver <nik@beavers.forsale>
Co-authored-by: Adrien Kara <mailcow-translate@iglou.eu>
Co-authored-by: Philipp E <ph.ecker@philipp-dev.info>
Co-authored-by: Michele Caputo <michele@caputoweb.xyz>
Co-authored-by: gomiunik <boris@gomiunik.net>