add apple-touch-icon

[silverwind]

favicon.png conveniently is already in the correct size.

Fixes: #10003

[zeripath]

Can we add the precomposed thing for android whilst we're at it?

[silverwind]

I think Android requires a manifest.json, probably better to do that another time.

[codecov-io]

Codecov Report

Merging #10006 into master will increase coverage by 0.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master   #10006      +/-   ##
==========================================
+ Coverage   42.25%   42.27%   +0.01%     
==========================================
  Files         610      610              
  Lines       80372    80372              
==========================================
+ Hits        33965    33976      +11     
+ Misses      42230    42218      -12     
- Partials     4177     4178       +1

Impacted Files	Coverage Δ
modules/options/options.go	96.15% <ø> (ø)	⬆️
modules/public/public.go	74.41% <ø> (ø)	⬆️
models/pull_sign.go	34.86% <0%> (ø)	⬆️
models/repo_sign.go	36.2% <0%> (ø)	⬆️
modules/avatar/avatar.go	48% <0%> (-6%)	⬇️
routers/repo/view.go	39.47% <0%> (+0.87%)	⬆️
modules/log/event.go	65.64% <0%> (+1.02%)	⬆️
services/pull/patch.go	69.81% <0%> (+1.88%)	⬆️
models/unit.go	39.5% <0%> (+2.46%)	⬆️
services/pull/temp_repo.go	34.18% <0%> (+2.56%)	⬆️

---

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[zeripath]

Not according to the link I put on the issue... but if you're sure.

[silverwind]

Yeah, that Android advice seems strange, I would not implement it like that. I think Android mostly just uses our existing shortcut icon.

If we want to support add-to-homescreen on Android, we should do https://developers.google.com/web/fundamentals/web-app-manifest, but I don't see much need for that as Gitea hardly qualifies as an "app".