Release Notes:
- N/A
This commit introduces a new method `range` to calculate the target
range for selection expansion based on the current selection, movement
times, and other parameters. The `expand_selection` method is refactored
to use this new `range` method, simplifying the logic for expanding a
selection and making the code more modular and reusable. The `range`
method encapsulates the logic for calculating the new selection range,
including handling linewise selection and adjustments for surrounding
newlines, making it easier to understand and maintain the selection
expansion functionality.
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Co-authored-by: Thorsten Ball <mrnugget@gmail.com>
