Addresses multiple improvements across various scripts:
- Fixes Valheim unstripped_corlib override by commenting out the lines in the config files.
- Improves process identification for source and goldsrc engines using `pgrep`.
- Enhances backup file identification using `find` with `-maxdepth 1` and `-type f`.
- Fixes glibc version comparison logic in multiple files.
- Improves UT2K4 key installation script by using printf for writing the key to the file.
- Corrects the mod info extraction logic to correctly identify mod entries.
- Improves amxmodx file installation/removal logic to prevent duplicate entries.
- Fixes server info retrieval to handle spaces in the server list.
Relates to #4696