fix: bash widget sanitization for &

In the bash widget readline code make sure that bash's `patsub_replacement` is temporarily unset to avoid having ${input}_NAVIEND in the final command when the expanded $replacement contains `&`

shell/navi.plugin.bash

@@ -16,8 +16,11 @@ _navi_widget() {
       local -r replacement="$(_navi_call --print --query "$last_command")"
       local output="$input"
       if [ -n "$replacement" ]; then
-         output="${input}_NAVIEND"
-         output="${output//$find/$replacement}"
+        output="${input}_NAVIEND"
+        output=$(
+          shopt -u patsub_replacement
+          printf '%s' "${output//"$find"/"$replacement"}"
+        )
       fi
    fi
 
@@ -33,4 +36,4 @@ if [ ${BASH_VERSION:0:1} -lt 4 ]; then
    bind '"\C-g": " \C-b\C-k \C-u`_navi_widget_legacy`\e\C-e\C-a\C-y\C-h\C-e\e \C-y\ey\C-x\C-x\C-f"'
 else
    bind -x '"\C-g": _navi_widget'
-fi
+fi