Improve loading of concept data

[stefandesu]

Currently, when there are too many concepts that are loaded simultaneously, it will fail completely due to the length of the requested URL. This needs to be fixed either here or in cocoda-sdk's getConcepts method.

coli-ana/src/store.js

Lines 30 to 40 in 92ba7e1

	async loadConcepts(concepts) {
	const toLoad = concepts.filter(c => !this.state[c.uri])
	if (toLoad.length) {
	const loadedConcepts = await registry.getConcepts({ concepts: toLoad })
	for (let concept of loadedConcepts) {
	concept._loaded = true
	this.state[concept.uri] = concept
	}
	}
	return concepts.map(c => this.getConcept(c) || c)
	},