chore: fix tests importing sha.js

The module is called sha.js, but the config strips .js from imports
expecting them to be JS files. This adds sha.js as an exception to
that rule.

Author: rjmunro

packages/webui/jest.config.cjs

@@ -7,6 +7,7 @@ module.exports = {
 	globals: {},
 	moduleFileExtensions: ['js', 'ts', 'tsx'],
 	moduleNameMapper: {
+		'sha.js': 'sha.js',
 		'meteor/(.*)': '<rootDir>/src/meteor/$1',
 		'(.+)\\.js$': '$1',
 	},