dont use code coverage during local dev

Author: kylemh

.gitignore

@@ -4,7 +4,7 @@ package-lock.json
 # Cypress local support artifacts
 cypress/screenshots
 cypress/videos
-cypress/downloads/downloads.html
+cypress/downloads
 
 # Logs
 logs

cypress/downloads/downloads.html

@@ -16,9 +16,12 @@ const webpack = require('@cypress/webpack-preprocessor');
 module.exports = (on, config) => {
   // `on` is used to hook into various events Cypress emits
   // `config` is the resolved Cypress config
-  addMatchImageSnapshotPlugin(on, config);
-  require('@cypress/code-coverage/task')(on, config);
-  on('file:preprocessor', require('@cypress/code-coverage/use-babelrc'));
+
+  if (!!process.env.CI) {
+    addMatchImageSnapshotPlugin(on, config);
+    require('@cypress/code-coverage/task')(on, config);
+    on('file:preprocessor', require('@cypress/code-coverage/use-babelrc'));
+  }
 
   // this fixes aliasing in cypres e2e tests
   // https://github.com/cypress-io/cypress/issues/3262#issuecomment-462646891