fn convert_selection(_: ())Expand description
Converts the current visual selection to a user-chosen case variant.
Prompts the user (via ytil_noxi::vim_ui_select::open) to select a case conversion
option, then applies the conversion to all selected lines in place.
Returns early if:
- No active Visual selection is detected.
- The user cancels the prompt.
- Writing the converted text back to the buffer fails (an error is reported via
ytil_noxi::notify::error).
§Errors
Errors from ytil_noxi::vim_ui_select::open are reported via ytil_noxi::notify::error
using the direct display representation of [rootcause::Report].
§Notes
Blockwise selections are treated as a contiguous span (not a rectangle).