Enable no-var, run eslint --fix and add the lint to the Jenkinsfile.

.eslintrc.js

Jenkinsfile

package.json

src-electron/db/db-api.js

src-electron/db/query-config.js

src-electron/db/query-generic.js

src-electron/db/query-impexp.js

src-electron/db/query-package.js

src-electron/db/query-session.js

src-electron/db/query-zcl.js

src-electron/main-process/about.js

src-electron/main-process/electron-main.js

src-electron/main-process/menu.js

src-electron/main-process/preference.js

src-electron/main-process/startup.js

src-electron/main-process/ui.js

src-electron/main-process/window.js

src-electron/rest/admin.js

src-electron/rest/endpoint.js

src-electron/rest/generation.js