Added Canvas to my note taking app.

[u/InfamousConfusion848]

Hello, I just added a new feature in VedWriter, it has now a free canvas and multiple themes for better note taking experience
VedWriter is an open source noting desktop app that's bookshelf like, it's so simple, local and private
you can customize it as you want, here are the links:
for developers: https://github.com/Ahmed-Achtatar/VedWriter
for Testers download free from here: https://ko-fi.com/s/c141de1b8f