fix encoding RM ANOVA Friedman (#4050)
fix encoding RM ANOVA Friedman (#4050)

* fix encoding RM ANOVA Friedman

* now also for all other instances of "subject" in RM ANOVA
boutinb/jasp-desktop,boutinb/jasp-desktop,TimKDJ/jasp-desktop,TimKDJ/jasp-desktop,FransMeerhoff/jasp-desktop,jasp-stats/jasp-desktop,TimKDJ/jasp-desktop,TimKDJ/jasp-desktop,FransMeerhoff/jasp-desktop,AlexanderLyNL/jasp-desktop,TimKDJ/jasp-desktop,jasp-stats/jasp-desktop,AlexanderLyNL/jasp-desktop,FransMeerhoff/jasp-desktop,FransMeerhoff/jasp-desktop,jasp-stats/jasp-desktop,TimKDJ/jasp-desktop,FransMeerhoff/jasp-desktop,boutinb/jasp-desktop,FransMeerhoff/jasp-desktop,AlexanderLyNL/jasp-desktop,boutinb/jasp-desktop,FransMeerhoff/jasp-desktop,boutinb/jasp-desktop,AlexanderLyNL/jasp-desktop,jasp-stats/jasp-desktop,TimKDJ/jasp-desktop,jasp-stats/jasp-desktop,AlexanderLyNL/jasp-desktop,AlexanderLyNL/jasp-desktop,boutinb/jasp-desktop,boutinb/jasp-desktop,boutinb/jasp-desktop,jasp-stats/jasp-desktop,jasp-stats/jasp-desktop,jasp-stats/jasp-desktop,AlexanderLyNL/jasp-desktop,AlexanderLyNL/jasp-desktop,FransMeerhoff/jasp-desktop,TimKDJ/jasp-desktop