* 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
There are two issues here:
- if IDB is blocked, then the promise never resolves when you log out (and call indexedDB.deleteDatabase) and the app remains in a permanently hung state
- why is IDB blocked? well, something seems to have changed in Chrome 70 such that doing these operations in a web worker causes the blocked error. The benefits of workerizing IDB is so small that I'd rather just remove it at this point.
