[feature] add `export` within 1-click rather than 3-clicks

[deadcoder0904]

currently, the export function is hidden within 3-clicks.

i have to check a few times to find export bcz i keep forgetting it's in the edit menu.

honestly, a download icon at the bottom would be preferable for export function like we have for rectangle, circle, triangle, line.

instead of rectangle, circle, triangle, line, it'd have png, svg, webp & jpeg.

of course, i don't mean to remove rectangle, just add an additional icon for download.

[senntore]

Yeah, I would love it if the Export could be in the top floating panel like undo/redo, etc & also outside of Edit menu.

[gordielachance]

...At least, it would be more logical to move it to the file menu.