[NRRPLT-8276] info and warning messages in alpha version

src/App.js

src/components/dialog/error-dialog.css

src/components/dialog/error-dialog.js

src/components/dialog/toast-notification.js

src/services/dialog-service.js

...ts/execution/__tests__/running-simulation-service.test.js

...ents/execution/__tests__/server-resources-service.test.js

...ces/experiments/execution/experiment-execution-service.js

...vices/experiments/execution/running-simulation-service.js

...ervices/experiments/execution/server-resources-service.js

src/services/experiments/files/experiment-storage-service.js

src/services/experiments/files/import-experiment-service.js