User is not able to add an entry on an already finished month

[rivasvict]

Description

Actual behavior:

GIVEN that the user is looking at a different month than the current one
WHEN the user enters a new entry
THEN the entry will not be saved in the past month (the one the user was in)
AND the entry will be saved in the current month

Expected behavior:

GIVEN that the user is looking at a different month than the current one
WHEN the user enters a new entry
THEN the entry should be saved in the month the user is loooking at