Fix POWERLEVEL9K_VIRTUALENV_SHOW_WITH_PYENV=if-different (I think)

We were comparing virtualenv's name to pyenv's version, which would
never be the same.

Now this setting works as intended, although I'm not sure how useful it
is. It's probably more useful to reorder this logic so virtualenv has
precedence.

internal/p10k.zsh

@@ -4304,8 +4304,10 @@ _virtualenv_load_name_poetry() {
 }
 prompt_virtualenv() {
   local msg=''
+  local version=''
   if (( _POWERLEVEL9K_VIRTUALENV_SHOW_PYTHON_VERSION )) && _p9k_python_version; then
-    msg="${_p9k__ret//\%/%%} "
+    version="${_p9k__ret//\%/%%}"
+    msg="$version "
   fi
   _virtualenv_name=''
   if [[ -n $VIRTUAL_ENV ]]; then
@@ -4324,7 +4326,7 @@ prompt_virtualenv() {
       _p9k_prompt_segment "$0" "blue" "$_p9k_color1" 'PYTHON_ICON' 0 '${(M)${#P9K_PYENV_PYTHON_VERSION}:#0}' "$msg"
     ;;
     if-different)
-      _p9k_escape $_virtualenv_name
+      _p9k_escape $version
       _p9k_prompt_segment "$0" "blue" "$_p9k_color1" 'PYTHON_ICON' 0 '${${:-'$_p9k__ret'}:#$_p9k__pyenv_version}' "$msg"
     ;;
     *)