fix: visual mode highlight lingers after put

[hernancerm]

Problem

The highlight set after a normal mode p or P lingers. Current master behavior:

hl-lingers-after-put.mp4

Solution

Do not highlight text put with p or P (changes in zvm_vi_put_after and zvm_vi_put_before).

Personally, I don't use highlights for yank/put, so I'm happy with this solution. Nonetheless, I understand if this removal is not desired, I listed alternative solutions below. Let me know if you want me to rework the solution. Behavior from this branch:

hl-lingers-after-put-fixed.mp4

Alternative solutions

1. Highlight on put but clear on cursor move, like ctrl+y on bindkey -e (emacs) or p/P on bindkey -v (vi).
2. Highlight on put but with a timer, like yanky.nvim. Perhaps not possible in a zsh plugin.

The alternative solution 1 seems more correct than the solution of this branch, as it would make ZVM match the behavior of bindkey -v insofar highlights, but the cost would be (likely) scattering zvm_highlight clear on every place where the cursor can be moved.

Notes

Related: #329

The videos were recorded using vhs with this tape file so the inputs are exactly the same on both tests:

hl-lingers-after-put.tape

Output hl-lingers-after-put.mp4

Set TypingSpeed 0.5s
Set Shell zsh

Hide
Type@5ms "curl -L raw.githubusercontent.com/jeffreytse/zsh-vi-mode/refs/heads/master/zsh-vi-mode.zsh | source /dev/stdin && clear"
# Type@5ms "curl -L raw.githubusercontent.com/hernancerm/zsh-vi-mode/refs/heads/fix-hl-lingers-after-put/zsh-vi-mode.zsh | source /dev/stdin && clear"
Enter
Sleep 0.2s
Show

# Single hihglight lingers

Sleep 0.5s
Type@0.2s "echo foo"
Ctrl+[
Sleep 0.5s
Type "yiwpibar"
Ctrl+[
Sleep 0.5s
Type "A"
Sleep 0.5s
Backspace 3
Enter

# Multiple hihglights linger

Sleep 0.2s
Type@0.2s "foo bar"
Ctrl+[
Sleep 0.5s
Type "yiwpio"
Ctrl+[
Sleep 0.5s
Type "0yiwPio"
Ctrl+[
Sleep 0.5s
Type "A baz"
Ctrl+[
Sleep 0.5s
Type "yiwpio"
Ctrl+[
Sleep 0.5s
Type@0.2s "Iecho "
Enter

Sleep 0.5s

Thanks for the plugin!