v2.3.5

NOTE: This is the last version that supports Calibre versions below 5.0.

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Added features and fixed bugs as follows:

1. feat: Added the option to enable/disable metadata translation.
2. feat: Updated Turkish UI translation. Credit to @DogancanYr
3. fix: Fixed the bug that caused output failure due to the lack of namespaces.
4. fix: Fixed the bug that prevented retry failure translation.
5. fix: Fixed the saved config display bug for the custom engine.