Marking code inside a codeblock will add the closing mark tag in the wrong position

## Information

- Plugin version: v1.14.0
- Markdown-It version: v14.1.0
- Environment: Chrome 119.0.6045.159

## Details

### Description

Attempting to mark code inside of a code block will misplace the mark closing tag, placing it before the next token starts, and if it is added after the last token ends it needs a whitespace to get added, other wise it is included in the last token. Usually the string-literal token is the easiest to reproduce this with.

Examples:

````
```ruby
<^><% %><^>
<% %>
```
````

````
```ruby
<^>to: ""<^>
```
````

````
```js
<^>const test = `hello<^>
world`;
```
````

In the last example we can see the mark closing tag is closed before the string literal starts:

### Steps to reproduce

Navigate to https://www.digitalocean.com/community/markdown
Clear the textbox
Paste one of the above examples inside of the textbox

### Expected behavior

Text inside of the <^> marking token gets marked in the resulting code block