v0.8.3

Changelog

8d75ba9 build: don't prematurely skip ignored directories (#1580)
5070f79 bump version (#1577)
39dff80 engine: open web browser on first Tiltfile load (#1579)
18c1f5d sail: sail serves the correct assets for the requested room [ch2283] (#1576)
60fd80a tiltfile: improve error message when services on the cli aren't found (#1583)
25a47bc tiltfile: record .dockerignore as configfiles (#1582)
59de1db web: bucketize durations under a minute (#1581)
0faacc5 web: errors in status bar links to error view (#1586)
b090577 web: fix snapshot tests (#1578)