improve PWA feel on iOS: offline fallback, overscroll, tap feedback, dark status bar, apple touch icon

Add offline.html served by the service worker when a never-visited route
is requested without network. Disable rubber-band overscroll bounce and
gray tap highlights so standalone mode feels less like a webview. Split
theme-color by prefers-color-scheme so the iOS status bar matches dark
mode, and add a proper 180x180 apple-touch-icon instead of downscaling
the 192px icon.
This commit is contained in:
2026-07-20 15:34:19 +09:00
parent d212451fe0
commit 4a7ef5cc29
6 changed files with 38 additions and 3 deletions
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