Fixing the "r" action just involved adapting `normal_replace` to replace
multiple characters.
Fixing the "shift-r" command was less straightforward. The bindings for
`vim::BeforeNormal` in replace mode were being overwritten and several
other steps required for action repetition were not performed. Finally,
the cursor adjustment after re-entering normal mode was duplicated
(`vim::BeforeNormal` was now triggered correctly) so I removed the
special case for replace mode.
Release Notes:
- Fixed vim "r" action to accept a count argument
- Fixed vim "shift-r" action to accept a count argument and allow
repetition
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Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
