Build tsc project before generating migration

This is especially important for comments-server, because ts-node will
use compiled js files from @rondo/server - that's just how node's module
resolution works and I do not think there's anything that we can do to
change that

packages/server/Buildfile

@@ -1,10 +1,13 @@
 server := src/bootstrap.ts
 typeorm := ts-node ../../node_modules/.bin/typeorm
 
+build:
+  tsc --build ./
+
 orm:
   typeorm $args
 
-migration:
+migration: build
   # typeorm migration:create -n $name
   $typeorm migration:generate -n $name