Ability to override or remove translations from a translation store

[NonSwag]

It is currently impossible to alter single translationss after they have been registered without removing the entire key with all translations
My use case for this is a command to register translations during runtime
example:
/translation add <key> <locale> <translation>
/translation remove <key> <locale>

/translation add hello-world en-US Hello World!
/translation add hello-world en-US Hallo Weltt!
/translation remove hello-world de-DE # because of typo
/translation add hello-world de-DE Hallo Welt! # fix spelling

TranslationStore#unregister(String) unregisteres all translations tied to hello-world in this instance even though I only want to remove/override the german translation