On the Nexus 5 especially, this ensures we no longer have nearly so many
"long tasks" (i.e. responsiveness is better). It moves html-to-txt
calculation to the same step as blurhash decoding, where it can be done
in requestIdleCallback (heck, maybe someday it could just be done in a
worker thread as well).
* perf: make timeline rendering less janky
1. Ensures all statuses are rendered from top to bottom (no more shuffling-card-effect rendering)
2. Wraps all individual status renders in their own requestIdleCallback to improve input responsiveness especially only slow devices like Nexus 5.
* fix focus restoration
* only do rIC on mobile
* fix: move blurhash worker operations to before status rendering
* slight refactor
* avoid sending encoded data back and forth
* move cache outside worker
* fix: update to latest sapper
fixes#416
* fix error and debug pages
* requestIdleCallback makes column switching feel way nicer than double rAF
* add export feature
* add better csp info
* workaround for sapper sub-page issue
* clarify in readme about exporting
* fix now config
* switch from rIC to triple raf
* style-loader is no longer used
* update theming guide
Nolan Lawson