Replace 'host' with 'protein', remove more virus stuff

src/app/analysis.service.ts

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

src/app/components/info-tile/info-tile.component.html

src/app/components/query-tile/query-tile.component.html

...pp/dialogs/launch-analysis/launch-analysis.component.html

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

src/app/interfaces.ts

src/app/network-settings.ts

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

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