Move turbolinks progressbar to the bottom on tablet and lower

[pixeldesu]

Fixes #215

(the !important are required because Turbolinks injects it's own style tag and there's no easier way overriding it's styling)

[codecov]

Codecov Report

Merging #260 (b1fa794) into master (5ffce61) will increase coverage by 1.42%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #260      +/-   ##
==========================================
+ Coverage   66.99%   68.42%   +1.42%     
==========================================
  Files          94       94              
  Lines        2136     2128       -8     
==========================================
+ Hits         1431     1456      +25     
+ Misses        705      672      -33     

Impacted Files	Coverage Δ
app/models/service.rb	88.88% <0.00%> (+27.77%)	⬆️
app/controllers/services_controller.rb	66.66% <0.00%> (+66.66%)	⬆️

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[raccube]

Actually just tried it on tablet and it's still at the top

[raccube]

Thought: bottom: calc(45px + env(safe-area-inset-bottom)) looks pretty good