Add minum size for text area for "Съобщение" on create contact

[Tuscann]

Which area(s) of Podkrepi.bg are affected?

Mobile layout

Describe the Bug

This editable text area. Add minum size for text area.

To Reproduce

1. Open https://podkrepi.bg/en/contact on mobile phone
2. Change size of "Съобщение" text area
3. Check visibility of label.

Expected Behavior

Minum size for text area to equel to textbox "Име" and other fields on this page.

Which browser are you using? (if relevant)

Vivaldi mobile.