During upgrade of InvoicePlane by overwriting files to the existing ones, the custoem_lang.php file is also overwritten.

Expected Behavior

custom_lang.php should be preserved on upgrade.

Current Behavior

Screenshots

Possible Solution

Rename custom_lang.php in the package to something like custom_lang.php.example

Steps to Reproduce

1.unzip new version over the existing version
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Context (Environment)

Detailed Description

Possible Implementation

Failure Logs