Fix PullToRefresh not working as intended causing issues in touch scroll

[sandercamp]

What

The feed page implements src/components/PullToRefresh.js functionality to allow a refresh when "pulling" at the top of the page on touch screens. This depends on the scroll position of some element. Due to the refactoring this wasn't working as intended anymore, triggering refreshes at other scroll positions

Why

Explain why these things are changes. This explanation is for your colleagues and your future self.

Code Review

Please consider the following checklist when reviewing this Pull Request.
More background and details here.

• [ ] Does the code actually solve the problem it was meant to solve?
• [ ] Is the code covered by unit tests? Integration tests?
• [ ] Does anything here need documentation? (Focus on why, not what.)
• [ ] Does any of this code deal with privacy sensitive information or affects security? Ask an additional reviewer.
• [ ] Is the code easy to understand and change in the future?
• [ ] Is the same code or concept duplicated? Find a balance between DRYness and readability.
• [ ] Does the code reasonably adhere to the Kabisa coding standards?
• [ ] Be kind.

[codeclimate[bot]]

Code Climate has analyzed commit 8532901e and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 33.3% (50% is the threshold).

This pull request will bring the total coverage in the repository to 12.8% (0.0% change).

View more on Code Climate.