Define a function named stringsToListInPlace that takes $1$ parameter, a list of strings. This function is similar to stringToLists but instead of returning a new list, it should return None. Mutate the input list such that each string is replaced by a list of its individual letters. Test Case: stringsToListInPlace$([\text{'}$qz$\text{'},\text{'}$M$\text{'},\text{'}$P$\text{'}])$ should evaluate return None and modify the input to be $[[\text{'}$q$\text{'},\text{'}$z$\text{'}],[\text{'}$M$\text{'}],[\text{'}$P$\text{'}]]$