Removed maxlength for field short description in ActivityDialog.

[paulfolkers]

Proposed change

If you add fields, e.g. dynamic fields or an article field to an activity dialog, you can fill the param "Description (short)". This field is limited to a maximum of 70 characters. Due to customer requests and since we cannot find a reason, why this field must be limited, we removed the maxlength option from this field.

Admins should remember to keep this short description as short as possible for layout reasons, but there is no need to restrict the number of characters.

Type of change

1 - 🚀 feature

Checklist

• [x] The code change is tested and works locally.(❗)
• [x] There is no commented out code in this PR.(❕)
• [ ] You improved or added new unit tests.(❕)
• [x] Local ZnunyCodePolicy passed.(❕)
• [x] Local UnitTests / Selenium passed.(❕)
• [x] GitHub workflow CI (UnitTests / Selenium) passed.(❗)

[paulfolkers]

@dennykorsukewitz just added the passed GitHub workflow check and marked the PR as ready for review.