Remove usage of eval in MarkerUtils

[MV88]

Description

We can get rid of this eval

MapStore2/web/client/utils/MarkerUtils.js

Lines 25 to 33 in c5ed4d0

	const loadGlyphs = (font) => {
	const fontJSON = cssJSON[font];
	return Object.keys(fontJSON).reduce((acc, key) => {
	return {
	...acc,
	[key]: eval("'\\u" + fontJSON[key] + "'") // eslint-disable-line
	};
	}, {});
	};

What kind of improvement you want to add? (check one with "x", remove the others)

• Minor changes to existing features
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

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