Q#$1$: $(3$ points$)$ Write a function sum$\_$even$\_$rows that takes my$\_$list as input and returns a new list where each element is the sum of the even numbers in each row of the list. my$\_$list $=[[1,2,3,4],[5,6,7,8],[9,10,11,12]]$

The function should return a list of sums, where each sum corresponds to a row in the matrix.