Log rescued exceptions to Sentry

Support noticed that a number of exceptions, such as
"Encoding::CompatibilityError (incompatible character encodings: UTF-8 and
ASCII-8BIT)", failed to report to Sentry. The `rescue_from` in the
ApplicationController prevented these exceptions from being recorded.
This change ensures that these exceptions are properly captured.

app/controllers/application_controller.rb

@@ -110,6 +110,8 @@ class ApplicationController < ActionController::Base
   end
 
   def log_exception(exception)
+    Raven.capture_exception(exception) if sentry_enabled?
+
     application_trace = ActionDispatch::ExceptionWrapper.new(env, exception).application_trace
     application_trace.map!{ |t| "  #{t}\n" }
     logger.error "\n#{exception.class.name} (#{exception.message}):\n#{application_trace.join}"

changelogs/unreleased/sh-log-application-controller-exceptions-sentry.yml

+---
+title: Log rescued exceptions to Sentry
+merge_request:
+author: