default node groups for analysis network

...app/components/analysis-panel/analysis-panel.component.ts

...p/components/network-legend/network-legend.component.html

...app/components/network-legend/network-legend.component.ts

src/app/config.ts

src/app/dialogs/launch-analysis/launch-analysis.component.ts

src/app/interfaces.ts

src/app/main-network.ts

src/app/pages/explorer-page/explorer-page.component.html

src/app/pages/explorer-page/explorer-page.component.ts

src/app/utils.ts

src/index.html