[BUG[: Getting the last line of the document is currently bugged

[4lch4]

If there are no links at the bottom of the file and you attempt to insert a link, it'll add it on the last line of the file no matter what's there. For example, if these were the last lines of your file (with no blank line below it):

- Added support for different languages
  - So far English, Spanish, and French are the only supported languages with English being the default.
  - You can set which language you'd like in your settings with the `enmeti.displayLanguage` property.
  - Changing the language does require a restart/reload of Visual Studio Code.
  - If you wish to fix any of the existing translations or add new ones, please open a PR or contact Alcha
- Fixed Enmeti from trying to insert a link when the **ESC** key is used on an **InputBox**.

When attempting to insert a link anywhere in the file, the reference link would appear after **InputBox**. and wouldn't actually work as a reference.