fix: Fixes rendering of non-Latin alphabet characters in PDF export

[antsgar]

Currently characters from non-Latin alphabets are not rendering correctly in PDF exports. The reason is @react-pdf/renderer, the library we use to render the PDF, comes with a limited set of included fonts which aren't able to render these characters. In order to fix this problem, we need to register the appropriate fonts and use them in the styling. This PR:

• Updates react-pdf to the latest version.
• Checks which Unicode scripts are contained in each Lexical text node using an external library.
• Adds Webpack compilation for local assets folder.
• Maps each Unicode script to the appropriate Noto Sans font that is able to render those characters, and gets the link for the font from Google Fonts CDN fetches the font from local assets.
• Sets the specified fonts as the font family for the node.
• Registers the fonts before rendering the PDF.
• Adds error handling so that if the rendering fails the error toast is displayed.