Update Vue Example

[themetalfleece]

• Update the overall example to be in line with the react one (React example (using Vue example as reference) #130).
• Upgrade all packages to their latest versions.
• Import mupdf directly and use the mupdfjs high level wrapper.
• Adjust the vite config to make this work with production builds.
• Update the prettier config file to enforce semicolons (I found inconsistent formatting in the files).
• Remove unnecessary async/await if not needed.
• Add comments in the code.
• Add "Notable Files" in the README.
• Replace .eslintrc.cjs with eslint.config.js, so it works with eslint 9.

As usual, I've tested locally both the dev and the production build, and it works as intended. Same experience with React, a few minor warnings on build, but no warnings or errors on runtime.
Please let me know if anything's amiss!

[jamie-lemon]

LGTM