Change activity view to match new error rate formula

[fznoviar]

No description provided.

[codecov-io]

Current coverage is 96.16%

Merging #224 into master will increase coverage by +0.42% as of 3121eb1

@@            master    #224   diff @@
======================================
  Files           46      46       
  Stmts         1385    1409    +24
  Branches         0       0       
  Methods        237     245     +8
======================================
+ Hit           1326    1355    +29
  Partial          0       0       
+ Missed          59      54     -5

Review entire Coverage Diff as of 3121eb1

---

Uncovered Suggestions

1. +1.14% via ...ports/CrawlerUrl.php#302...317
2. +0.43% via .../CustomPresenter.php#17...22
3. +0.29% via ...pp/Model/Project.php#168...171
4. See 7 more...

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[scrutinizer-notifier]

The inspection completed: 13 new issues, 10 updated code elements