Fix resources by correcting invalid language codes

[mohsenoid]

The Problem

The release build was failing, and the Google Play API rejected the .aab file with a 403 Forbidden error, stating:
"The bundle targets unrecognized languages: by, cz, dk, fl, fp, gr, jp."

The Root Cause

Several Android localization resource directories (values-*) were using incorrect, non-standard abbreviations (such as country codes or custom shorthand) instead of the required ISO 639-1 or 639-2 language codes.
Google Play requires strict adherence to these standard language codes to process the app bundle.

Changes Made

Renamed the affected resource directories to map to their correct ISO standard language codes:

• values-by $\rightarrow$ values-be (Belarusian)
• values-cz $\rightarrow$ values-cs (Czech)
• values-dk $\rightarrow$ values-da (Danish)
• values-fl $\rightarrow$ values-fi (Finnish)
• values-fp $\rightarrow$ values-fil (Filipino)
• values-gr $\rightarrow$ values-el (Greek)
• values-jp $\rightarrow$ values-ja (Japanese)

This resolves issue #6 & #2

[mohsenoid]

Could you please review this and arrange a new release that includes the fix?