Kl/scrum 112 Bugfix add password max length validation

[kevin-lann]

Description

SCRUM-112

Bug fix: Add password max length validation to sign up form.

Type of change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings