mise interactive menu bugs

[skoch13]

the bug is similar to jdx/aube#1109

[jdx]

Confirmed: this is the MultiSelect counterpart to the wrapped-row redraw bug fixed for the other demand widgets in v2.0.4.

MultiSelect still counted logical lines with output.lines(). In a narrow terminal, the long mise upgrade option labels (or the help footer) wrap into extra physical rows, so each keypress leaves stale rows behind and stacks another copy of the prompt.

I opened a ready-for-review upstream fix: jdx/demand#192

The PR switches MultiSelect to physical-row-aware clearing and adds VT100 terminal regressions for:

• repeated redraws with a wrapped option
• shrinking a frame that previously contained wrapped rows
• preserving the existing no-drift behavior

Once that lands and is released, mise can pick up the new demand version.

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