Add white version of the calendar.svg icon

[pixelipo]

There's no reason for not including it and it is needed for Deck app in nextcloud/deck#189

@nextcloud/designers @juliushaertl

Signed-off-by: Marin Treselj marin@pixelipo.com

[jancborchardt]

We need to keep the viewbox attribute though, so all icon resizing in the apps menu and app management works on Firefox, right? cc @MorrisJobke

[pixelipo]

@jancborchardt then what about core/img/places/files-dark.svg ?

[codecov]

Codecov Report

Merging #5447 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@ Coverage Diff @@## master #5447 +/- ##
============================================
- Coverage 54.14% 54.13% -0.01% 
Complexity 22329 22329 ============================================
Files 1380 1380 Lines 85544 85544 Branches 1329 1329 ============================================
- Hits 46314 46311 -3 - Misses 39230 39233 +3

Impacted Files	Coverage Δ	Complexity Δ
core/js/js.js	61.27% <0%> (-0.56%)	0% <0%> (ø)
apps/comments/lib/EventHandler.php	87.5% <0%> (+8.33%)	7% <0%> (ø)	⬇️

[MorrisJobke]

We need to keep the viewbox attribute though, so all icon resizing in the apps menu and app management works on Firefox, right? cc @MorrisJobke

Correct

@jancborchardt then what about core/img/places/files-dark.svg ?

Please add it there as well. We had weird rendering issues in firefox, especially if the view box is not there and the path is defined in a bigger scope, then firefox misrendered it

[pixelipo]

Ok, now all the places icons (apart from home.svg - that is in #5229 ) have viewport. I've also cleaned up some extra styles.

[juliusknorr]

We should also introduce a class icon-calendar like there is one for icon-calendar-dark already.

[jancborchardt]

Failures unrelated, merging. :)