More Eslint enforcements

[christian-bromann]

Proposed changes

This patch adds enforcement of single quotes and no semicolons.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Reviewers: @webdriverio/technical-committee

[codecov]

Codecov Report

Merging #3144 into master will decrease coverage by <.01%.
The diff coverage is 97.59%.

@@            Coverage Diff             @@
##           master    #3144      +/-   ##
==========================================
- Coverage   96.74%   96.74%   -0.01%     
==========================================
  Files         129      130       +1     
  Lines        2738     2737       -1     
  Branches      579      579              
==========================================
- Hits         2649     2648       -1     
  Misses         79       79              
  Partials       10       10

Impacted Files	Coverage Δ
...s/wdio-allure-reporter/tests/__fixtures__/suite.js	100% <ø> (ø)	⬆️
...es/webdriverio/src/commands/element/dragAndDrop.js	100% <ø> (ø)	⬆️
.../wdio-allure-reporter/tests/__fixtures__/runner.js	100% <ø> (ø)	⬆️
packages/wdio-concise-reporter/tests/fixtures.js	100% <ø> (ø)	⬆️
packages/wdio-mocha-framework/src/utils.js	100% <ø> (ø)	⬆️
packages/webdriverio/src/utils.js	100% <ø> (ø)	⬆️
...wdio-allure-reporter/tests/__fixtures__/command.js	100% <ø> (ø)	⬆️
packages/webdriverio/src/commands/browser/keys.js	69.23% <0%> (ø)	⬆️
.../webdriverio/src/commands/element/selectByIndex.js	75% <0%> (ø)	⬆️
packages/webdriverio/src/commands/browser/url.js	100% <100%> (ø)	⬆️
... and 20 more

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[christian-bromann]

Moving forward with this. If anyone has any objections I am happy to open a follow up PR.