style: align constant assignments and fix trailing brackets for readability

[massif-py]

Description

This PR focuses purely on code style and readability improvements. No functional changes or logic modifications were introduced.

Changes Made:

• Constant Alignment: Vertically aligned the = assignment operators in the constant class to improve visual scanning.
• List Formatting: Moved the closing bracket ] to its own line in the get_dic() function and added a trailing comma to the last item (b"kitty",).

Why?

• Improves overall code maintainability and adherence to PEP 8 standards.
• The trailing comma and bracket placement in the wordlist will prevent noisy Git diffs when adding or removing items in the future.