feat: generate pdf for slides

[neo773]

Utilizes Puppeteer to generate precisely dimensioned PDFs, eliminating top and bottom whitespace.

Performance comparison:

• This solution: 5.7 seconds
• decktape library: 80 seconds
• Result: 14x performance improvement

Execution times:

node gen-pdf.js 3.11s user 1.80s system 85% cpu 5.768 total
npx -y decktape remark http://127.0.0.1:8080/ slides.pdf 11.11s user 6.57s system 21% cpu 1:20.71 total

Sample PDF output

Successful CI Run

a.mp4

/claim #1
/closes #1

[tusharmath]

Color and theming isn't right.

[neo773]

Fixed the issues.
Also updated CI runner to run on macOS this ensures accurate rendering of the emojis as emojis on Linux are different.

[neo773]

Please use Chrome's PDF viewer to open this, macOS's built-in PDF viewer has some issues with emojis.

slides.pdf

[tusharmath]

@neo773 Some emoji's are visible some are not on mac. I think overall its going in the right direction.

Moving to draft to reduce noise and improve CI efficiency. Once you are ready just mark it as "ready to review". Feel free to give a shoutout on the #contributors channel on Discord if you want immediate attention.

[neo773]

slides.pdf