[bug] Remove key from lang files

[aocneanu]

This is a bug.

Prerequisites

• [x ] Are you running the latest version?
• Are you reporting to the correct repository?
• Did you check the documentation?
• Did you perform a cursory search?

Description

When we remove a key from the UI it gets deleted only from the language we edit.

Steps to Reproduce

Expected behavior

The key should be removed from all lang files

Actual behavior

The key is removed only from the lang file corresponding to the edited language in UI