new icon: SolidJS (original, origianl-wordmark, plain, plain-wordmark)

[AcmeGamers]

Double check these details before you open a PR

• [ ✔ ] PR does not match another non-stale PR currently opened
• [ ✔ ] PR name matches the format new icon: Icon name (versions separated by comma). More details here
• [ ✔ ] PR's base is the develop branch.
• [ ✔ ] Your icons are inside a folder as seen here
• [ ] SVG matches the standards laid out here
• [ ✔ ] A new object is added in the devicon.json file as seen here

Link to prove your SVG is correct and up-to-date.

https://www.solidjs.com/

[Snailedlt]

@AcmeGamers I suggested a few changes. Let us know if you need any help with it :)

[Snailedlt]

superseeded by #1557