Add flexible SVG scaling options -- with video overview/demo

[TheLDB]

Hello!

My PR adds the ability to scale an svg both on the x/y axes at the same time, and independently. So you could scale an image either 50x, or set a custom x and y value for the PNG. Additionally I learned that in Chrome, the max pixels on a canvas is 268,435,456 source, so I added a quick warning if you exceed that, this can be easily removed if wanted though.

I created a quick video going over and demonstrating the changes, and the quick code changes I made.

Thanks!

https://github.com/user-attachments/assets/5fbe47d9-8970-4878-9c86-ceb40a618684

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Name	Status	Preview	Comments	Updated (UTC)
quickpic	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 10, 2024 6:00pm

[TheLDB]

solved merge conflicts

[TheLDB]

closing -- #62 implemented custom scale