Translations update from Weblate (#15934)

* Translated using Weblate (Spanish)

Currently translated at 99.7% (2075 of 2080 strings)

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/es/

Translated using Weblate (Spanish)

Currently translated at 99.4% (2068 of 2079 strings)

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/es/

* Update translation files

Updated by "Cleanup translation files" hook in Weblate.

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/

* Translated using Weblate (Portuguese (Brazil))

Currently translated at 98.2% (2044 of 2080 strings)

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/pt_BR/

* Translated using Weblate (Chinese (Simplified))

Currently translated at 99.5% (2071 of 2080 strings)

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/zh_Hans/

* Translated using Weblate (Japanese)

Currently translated at 99.7% (2075 of 2080 strings)

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/ja/

* Translated using Weblate (Japanese)

Currently translated at 99.7% (2075 of 2080 strings)

Translation: mattermost-languages-shipped/mattermost-server_master
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/ja/

Co-authored-by: Elias  Nahum <elias@mattermost.com>
Co-authored-by: rodrigocorsi <rodrigocorsi@gmail.com>
Co-authored-by: aeomin <lin@aeomin.net>
Co-authored-by: kaakaa <stooner.hoe@gmail.com>
Co-authored-by: maruTA-bis5 <bis5.wsys@gmail.com>

i18n/it.json

@@ -6254,10 +6254,6 @@
     "id": "api.context.server_busy.app_error",
     "translation": "Il server è occupato, i servizi non critici saranno temporaneamente non disponibili."
   },
-  {
-    "id": "api.file.upload_file.rejected_by_plugin.app_error",
-    "translation": "Impossibile caricare il file {{.Filename}}. Rifiutato dal plugin: {{.Reason}}"
-  },
   {
     "id": "api.image.get.app_error",
     "translation": "L'url dell'immagine richiesta non può essere interpretato."