fix formatting in files, remove empty lines

[Revazashvili]

fix formatting of some files and remove empty lines, leave only one separator line between methods.

[sonarqubecloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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[Clifftech123]

@Revazashvili Thank you for this. It will be reviewed. Thank you for contributing