Fix syntax highlight for js/ts with export default

[xeaone]

The syntax highlighting has unexpected color when using export default inline with class in js/ts.

Notice the curly brackets, semicolon, and parentheses all adopt the class name color. This color change also modifies other syntax. It seems as though that a possible solution might be to remove the scope "meta.export.default" (Dark and Light do not include this scope).

Before

After

Merge checklist

• [x] Added/updated colors
• [x] Added/updated documentation/README
• [x] Tested in GitHub Light Default theme

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Latest commit: cf35a4cc207e8c08f12ca9972bd5b54fba2cf52d

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