Also updates a lot of other things (brush size now independent from
scale factor, split some files, and a lot other things; removed erase
safeguard as now erase is supported by undo/redo; tried adding github
prettier autoformatting to pull requests;
may have some other things as well
Signed-off-by: Victor Seiji Hariki <victorseijih@gmail.com>
Former-commit-id: 0ba21f23c69f9dca2c3189a838b945900b01f81d
input.js is now responsible for processing mouse input and translating
it to relevant events. This allows for less bloat on the main logic in
index.js and easy implementation of new functionality
Signed-off-by: Victor Seiji Hariki <victorseijih@gmail.com>
