[Bug]: Exclude non-URL character from a link while composing a ticket

[tanjiralmamun]

Description of the issue: Non-URL characters are included in a link while composing a ticket.

Screenshot: https://snipboard.io/vgIVrd.jpg

How to reproduce: Insert a link while composing a ticket and end with a non-URL character as shown in the screenshot to reproduce the issue

Expected Behavior: Non-URL characters should be included in a link while composing a ticket.

[freescout-helpdesk]

We'd appreciate a pull request.