Beta Testing Round 3 Bug Fixes (#1357)

* Clean up env example files

* Fix duplicate category creations

* Fix duplicate tag and merchant creation

* Add initial valuation to imported accounts

* Add upgrade modal prompt

* Don't hide content on billing page

* Add temporary session for new customers

* Lint fixes

* Fix unused translations

* Fix system tests

.gitignore

@@ -10,8 +10,8 @@
 # Ignore all environment files (except templates).
 /.env*
 !/.env*.erb
-!.env.example
-!.env.test.example
+!.env.test
+!.env*.example
 
 # Ignore all logfiles and tempfiles.
 /log/*