Small allergy page layout change

[mhvis]

Small layout change for the allergy page. Prevents horizontal scrolling on mobile. Different icon which is maybe a bit more friendly than the skull.

Feel free to reject this if you don't like it.

[codecov[bot]]

Codecov Report

Base: 56.65% // Head: 56.70% // Increases project coverage by +0.04% :tada:

Coverage data is based on head (3aa2da7) compared to base (64da0a8). Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #232 +/- ## ========================================== + Coverage 56.65% 56.70% +0.04% ========================================== Files 48 48 Lines 2344 2342 -2 Branches 280 280 ========================================== Hits 1328 1328 + Misses 987 985 -2 Partials 29 29 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `56.70% <0.00%> (+0.04%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Dutcher#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/DutcherNL/Scala-Dining-WebApp/pull/232?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Dutcher) | Coverage Δ | | |---|---|---| | [dining/views.py](https://codecov.io/gh/DutcherNL/Scala-Dining-WebApp/pull/232/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Dutcher#diff-ZGluaW5nL3ZpZXdzLnB5) | `23.73% <0.00%> (+0.14%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Dutcher). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Dutcher)

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