jams-react-client: fix most compilation warnings

jams-react-client/jsconfig.json

jams-react-client/src/auth.js

jams-react-client/src/components/CaSetup/CaSetup.js

jams-react-client/src/components/Devices/Devices.js

jams-react-client/src/components/Footer/Footer.js

...t/src/components/IdentityManagement/IdentityManagement.js

...lient/src/components/ServerParameters/ServerParameters.js

jams-react-client/src/components/Sidebar/Sidebar.js

jams-react-client/src/layouts/BaseLayout.js

jams-react-client/src/layouts/ListLayout.js

jams-react-client/src/layouts/SignIn.js

jams-react-client/src/routes/SettingsRoute.js

...-client/src/views/Blueprint/EditBlueprintConfiguration.js

jams-react-client/src/views/Blueprint/updatePolicyData.js

jams-react-client/src/views/Blueprints/Blueprints.js

jams-react-client/src/views/Contacts/Contacts.js

jams-react-client/src/views/Groups/EditGroup.js

jams-react-client/src/views/Groups/Groups.js

jams-react-client/src/views/Settings/Settings.js

...-react-client/src/views/UserProfile/DisplayUserProfile.js