Improve mobile appearance

[benekex2]

I want to merge this change because its fix general mobile issues

Ref #233

Screenshots

Pull Request Checklist

1. All visible strings are translated with proper context.
2. All data-formatting is locale-aware (dates, numbers, and so on).
3. Translated strings are extracted to .pot file.
4. Number of API calls is optimized.
5. The changes are tested.
6. Type definitions are up to date.
7. Changes are mentioned in the changelog.

[codecov]

Codecov Report

Merging #240 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #240      +/-   ##
==========================================
+ Coverage   73.97%   74.02%   +0.05%     
==========================================
  Files         604      605       +1     
  Lines        6481     6491      +10     
  Branches     1063     1063              
==========================================
+ Hits         4794     4805      +11     
  Misses       1501     1501              
+ Partials      186      185       -1

Impacted Files	Coverage Δ
...rc/products/components/ProductList/ProductList.tsx	51.92% <ø> (ø)	⬆️
...nslationsEntitiesList/TranslationsEntitiesList.tsx	73.33% <ø> (ø)	⬆️
...mponents/DiscountCategories/DiscountCategories.tsx	82.6% <ø> (ø)	⬆️
...components/ShippingZonesList/ShippingZonesList.tsx	85% <ø> (ø)	⬆️
src/components/ColumnPicker/ColumnPicker.tsx	60% <ø> (ø)	⬆️
src/orders/components/OrderList/OrderList.tsx	92.59% <ø> (ø)	⬆️
...pes/components/ProductTypeList/ProductTypeList.tsx	95.65% <ø> (ø)	⬆️
...ts/AssignAttributeDialog/AssignAttributeDialog.tsx	90.9% <ø> (ø)	⬆️
...DraftDetailsProducts/OrderDraftDetailsProducts.tsx	84.21% <ø> (ø)	⬆️
...ountrySelectDialog/DiscountCountrySelectDialog.tsx	44.44% <ø> (ø)	⬆️
... and 51 more

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[dominik-zeglen]

Menu labels are hidden if menu is minimized in desktop mode:

There's still too much going on: