Sugggestion: Improvement in Generate functionality

[sharif-22]

if the person complete the presentation we need to move the person to completed list or else in pending list (in case he facing some internet issues or power issues )

and then we need to pick remaining person from the list

then we can move to pending list and select them randomly

and we need to move person manually to completed list or pending list

[mshajid]

@sharif-22 : check the issue title.