added slice file to be ignored by test runner to get more accurate coverage results

Author: AndrewByun

jest.config.js

@@ -6,7 +6,7 @@ module.exports = {
   transform: {
     '^.+\\.(js|ts|tsx)$': 'ts-jest',
   },
-  testPathIgnorePatterns: ['www', './src/backend/__tests__/ignore', './src/app/__tests__enzyme/ignore', './src/backend/__tests__/linkFiber.test.ts' ],
+  testPathIgnorePatterns: ['www', './src/backend/__tests__/ignore', './src/app/__tests__enzyme/ignore', './src/backend/__tests__/linkFiber.test.ts', './src/app/slices/mainSlice.ts'],
   coveragePathIgnorePatterns: ['/src/backend/__tests__/ignore/', '/src/app/__tests__enzyme/ignore'],
   transformIgnorePatterns: ['/node_modules/(?!d3|d3-array|internmap|delaunator|robust-predicates)'],
   testRegex: '(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$',