Please fix issues reported by adapter checker

[mcm1957]

👀 [W156] Adapter should support admin 5 UI (jsonConfig) if you do not use a React based UI
👀 [W172] "common.localLink" in io-package.json is deprecated. Please define object "common.localLinks": { "_default": "..." }
👀 [W145] Each "common.news" should be translated into all supported languages (en, de, ru, pt, nl, fr, it, es, pl, uk, zh-cn)
👀 [W145] Each "common.news" should be translated into all supported languages (en, de, ru, pt, nl, fr, it, es, pl, uk, zh-cn)
👀 [W145] Each "common.news" should be translated into all supported languages (en, de, ru, pt, nl, fr, it, es, pl, uk, zh-cn)
👀 [W145] Each "common.news" should be translated into all supported languages (en, de, ru, pt, nl, fr, it, es, pl, uk, zh-cn)
👀 [W513] "gulpfile.js" found in repo! Think about migrating to @iobroker/adapter-dev package