Generate fetch emails script from a template to improve performance

overlay/etc/bf/init.d/36-fs-cron.nu

@@ -0,0 +1,9 @@
+use bf
+bf env load
+
+def main [] {
+    # generate fetch email cron script
+    let fetch_emails = $"(bf env CRON_D)/1min/fetch-emails"
+    bf write $"Generating ($fetch_emails)."
+    bf esh template $fetch_emails
+}

overlay/etc/bf/templates/fetch-emails.esh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+set -euo pipefail
+export BF_E=`basename ${0}`
+
+
+#======================================================================================================================
+# Fetch emails manually.
+# This is because on Alpine the scheduler doesn't fetch emails correctly.
+#======================================================================================================================
+
+php <% bf-env FS_SRC %>/artisan freescout:fetch-emails >> <% bf-env FS_LOGS %>/fetch-emails.log