Updates ESM boilerplate

[marklundin]

Updating the editor-api ESM boiler plate to include new attributes over attributesDefinition, using Script over ScriptType. Also bumping to .31 patch as an earlier release was published with no updates

[Maksims]

By dropping scriptName, will that result in name to be equal to actual class name, which will result in Editor parsing not to be camelCase? Which then can result in lines like that: entity.script.Rotator - which is not within our recommended coding style, or really any JS common style.

[marklundin]

No it's currently lowercase, but can be overridden using static name. if it needs to be camelCase this is more of an editor/engine concern