Wanderer: Truncated requester title when overwriting fails

**Describe the bug** When a file copying operation fails to overwrite the destination, the resulting error requester may have a truncated title (at least with the default theme) when the destination path is short. Additionally, the text in the requester body could be improved by changing "Errormessage" to "Error message" or just "Error". **To Reproduce** Steps to reproduce the behavior: 1. Create a directory in RAM: named "Input". 2. Open SYS:Prefs 3. Drag the "Input" program to RAM:. 4. Click 'Overwrite'. 5. Observe error requester with truncated title. **Expected behaviour** Requester title should not be truncated. **Screenshots** If applicable, add screenshots to help explain your problem. **Architecture** - pc (native) **CPU** - i386 **Version** 0f493b0a **Additional context** Add any other context about the problem here.