v0.0.52

• show parts times selected quantity when creating multiple order items in bottom toolbar
• allow to specify a search parameter to set the locale that can be used when embedding public customer portal as an iframe
• show the number of maximum files that can be uploaded simultaneously in the warning when dropping more files than allowed
• fix a bug that prevented metrics from being saved
• performance improvements:
  • added several DB indexes
  • improve parallelisation of requests to avoid bottlenecks
• some logging and error handling improvements