[Docs] update logo format to svg

[hwhsu1231]

No description provided.

[sbc100]

Is this better for some reason?

Should we delete the old one?

[sbc100]

(Maybe you could update the PR description to include the rationale)

[hwhsu1231]

SVGs offer much better clarity and scalability without pixelating. It is also a common practice for most modern documentation sites to use SVG logos whenever available.

More importantly, I plan to add Emscripten to the "Showcases" section of the Shibuya documentation later. Since those showcases directly access their SVG asset from the deployed documentation directory, adopting the SVG format now prepares us for the change.

As for the old logo file, yes, we should delete it to keep the repository clean. I can remove it in this PR if you agree.

[sbc100]

Yes please remove the old one

[sbc100]

BTW, how did you go about creating the svg? Did it come from somewhere else?

[hwhsu1231]

BTW, how did you go about creating the svg? Did it come from somewhere else?

I just copied and pasted the original svg file provided by the repository:

https://github.com/emscripten-core/emscripten/blob/33e626cb6df113fe2288504f76d467f5097c1063/media/Emscripten_logo_full.svg