Merge branch 'feat/sau/instance-name' into 'dev'

feat(SAU): Add the instance name as a Sentry tag

See merge request !58

src/instrument.js

@@ -10,3 +10,4 @@ Sentry.init({
   debug: isDev(),
   autoSessionTracking: true,
 })
+Sentry.setTag('instance', process.env.COZY_URL)