🔙 from #717 - Street view not visible on subsequent map click

[github-actions]

Backport 88eaefa from #717 to v3.11.x.

Fixes reference to undefined GUI variable.

g3w-client/src/services/gui.js

Lines 84 to 93 in 15150ae

	async function _clearContents() {
	await Promise.allSettled((ApplicationState.contentsdata || []).map(async d => {
	if (d.content instanceof Component || d.content instanceof Panel) {
	await promisify(d.content.unmount());
	} else {
	$(GUI.getComponent('contents').parent).empty();
	}
	}));
	ApplicationState.contentsdata.splice(0, ApplicationState.contentsdata.length);
	}

Closes: #713