Square brackets are not dark mode compatible

[nemoralis]

Square brackets' color in fluff module is hardcoded and it is not dark mode compatible:

twinkle-core/src/modules/fluffCore.ts

Lines 40 to 47 in 1974e21

	buildLink: (color, text) => {
	var link = document.createElement('a');
	link.appendChild(this.linkBuilder.spanTag('Black', '['));
	link.appendChild(this.linkBuilder.spanTag(color, text));
	link.appendChild(this.linkBuilder.spanTag('Black', ']'));
	link.href = '#';
	return link;
	},