fix: telemetry version was hardcoded to 0.3.3 since launch

Every user reported as v0.3.3 regardless of installed version.
Now reads from package.json dynamically. Also adds version
display to HTML report header and unique user counting to
the public stats endpoint.

bump to v0.5.7

bump to v0.5.6

bump to v0.5.5

bump to v0.5.2

fix: await telemetry before process exit — fixes Mac/fast systems

bump: v0.3.1 — fix version string in CLI output

bump: v0.3.0