melcom's FFmpeg Audio Normalizer

Version 1.4
- Restructured the log file so that the newest entries are at the top.
- Improved the user interface to make prompts and inputs clearer.
- Added the option to view the log file after the process is complete.
- Various bug fixes and optimizations.
- **New GUI version added:** I have now created a version of my tool with a graphical user interface (GUI) to further improve user-friendliness.
- **Multilingual support:** The tool is now available in German (AudioNormDE) and English (AudioNormEN).
- **Automatic check for ffmpeg.exe:** The tool now automatically checks if ffmpeg.exe is in the directory and gives a warning if it is missing.
- **Continuous mode:** After completing a process, the tool remains open, allowing the user to continue with the next file directly.

Version 1.3
- Added a logging function to save the workflow in a log file.
- Inserted timestamps and separators in the log file.
- Limited the log file size and deleted older entries when the maximum size is exceeded.

Version 1.2
- Added a prompt to ask whether to overwrite the output file if it already exists.
- Improved user-friendliness and fixed bugs.

Version 1.1
- Added a progress bar during the normalization process.
- Improved the user interface and clarified input prompts.

Version 1.0
- Initial version of the FFmpeg Audio Normalizer batch file.
- Basic functionalities for inputting the original file and normalizing the volume using FFmpeg.
