Flag to which namespace you would like to watch resouces in

[iNoahNothing]

Thanks for the great tool! Just as a suggestion of something that would really help me, on top of #36, would be to be able to pass a -n flag to identify the namespace you would like to start kubelive in.

Ex. kubelive -n dev would start kubelive in the dev namespace

[ameerthehacker]

Thanks for the suggestion @nbkrause will add this to the pipeline of next release