Replace cogatlas prefix for assessment tools

[surchs]

Once we move assessments to SNOMED-CT, we need to also update all hard-coded references to CogAtlas. E.g. here:

annotation_tool/store/index.js

Lines 149 to 153 in 480d493

	toolTerms: Object.entries(toolTerms).map(([key, value]) => ({
	label: value,
	identifier: "cogatlas:" + key,
	selected: false
	})),

TODO

• Update all tests to use snomed over cogatlas
• Replace CogAtlas prefix with snomed in the codebase