🍰 2019/kw20/fix_lint_rules_and_vscode

Created by: Tirokk

Authored by ulfgebhardt May 18, 2019 Merged May 23, 2019

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🍰 Pullrequest

• Unified lint rules (duplicate definitions)
• more lint rules
• prettier lets lint fail
• vscode settings
• vscode recommended plugins

Issues

• fixes https://github.com/Human-Connection/Human-Connection/issues/590

Todo

• Are the rules ok? @roschaefer
• Autofix lint problems
• Fix remaining problems (64 frontend & 5 backend)