fix: adjust name check for tenant and technical user

[Phil91]

Description

replace all characters that are not alphabetical or numeric for technical users and tenants

Why

The wallet creation fails when trying to create a wallet with a name longer than 32 characters and any other characters other than alphabetical or numeric

Issue

Refs: #112

Checklist

• I have performed a self-review of my own code
• I have successfully tested my changes locally
• I have added tests that prove my changes work
• I have checked that new and existing tests pass locally with my changes
• I have commented my code, particularly in hard-to-understand areas
• I have added copyright and license headers, footers (for .md files) or files (for images)