What should I do if Mil want to come to my place everyday to see baby.. just because she say is bore at home...

Tell her with a smile "Mother, we can send you many baby photos and videos everyday actually!" Then pray she gets your hint. If she still insists, "Don't trouble yourself with the to-and-fro journey everyday, esp now got Covid, so scary, better to stay home for your own safety!" And pray again that she gets your second hint.