Lacking input validation for packing list item

[ana-rosu]

Proiect-MDS/src/app/(tabs)/PackingList/_layout.tsx

Line 20 in 639721c

if (text === '') return;

Steps to reproduce the issue:

1. Go to packing list.
2. When adding a new item, input a string consisting only of whitespace characters and hit Enter.

Observed behavior:
The application successfully added the item despite containing only whitespace characters.

Expected behavior:
The application should prevent the addition of a new item if it contains only whitespace characters. A validation error or warning message should be displayed to indicate that the input is invalid.