(Improvement) Activate linter and fix detections

[garatortiz]

• What is it? (leave one option)

  • (Improvement) of existing functionality

• What was the root cause of the problem originally / what feature was missing? There were errors of lintering throughout the entire project

• How does this pull request solve it (in broad terms)? Apply lintering before push the repository

• Does it close any open issues? Closes #33

• Quick checklist

  • [x] eslint shows no errors

    cd web-dapp
    eslint .

  • [x] docs were updated where necessary OR they don't need to be updated
  • [x] tests were updated where necessary OR they don't need to be updated

• Additional information Please, merge the PR #80 first

[coveralls]

Pull Request Test Coverage Report for Build 223

• 5 of 6 (83.33%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.09%) to 67.957%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
web-dapp/routes/notify_reg_tx.js	0	1	0.0%
<!--	Total:	5	6	83.33%	-->

Totals
Change from base Build 218:	0.09%
Covered Lines:	762
Relevant Lines:	1076

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💛 - Coveralls

[phahulin]

@matiasgaratortiz Please fix merge conflicts