devel/tvision: Update to 2026.05.12
ChangeLog:
- Update the borders of framed views upon insertion or removal
- Prevent out-of-bounds array access in TCommandSet
- Regenerate missing scan codes in win32-input-mode
- Fix write() usage in StderrRedirector
- Also restore terminal state on SIGBUS and SIGPIPE
MFH: 2026Q2