Automatically append measures when editing extends beyond the end of score

[bakajikara]

Resolves: #22600
Resolves: #24787

This PR enables users to directly input notes beyond the end of the score using the mouse or keyboard, which automatically appends a new measure. It also appends measures when other operations, like repeating selection or changing duration, cause the content to extend past the final barline, allowing for a continuous workflow without needing to manually add measures first.

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