[CONFIGURATOR] Improve configurator web app tool

[Nico-Sanchez]

Currently, the tool doesn't have much support for different testing versions or track records.
Here's a list of possible iterations and features to implement (unordered):

• [CONFIGURATOR] map configs per game mode #1027
• Add all missing stuff and allow the user create new records of every config and its attributes.
• [CONFIGURATOR] Next iteration issues #1028
• Export obstacles layout from Unity (somehow) and be able to import them to the configurator to create the records.
• Versions. Each version must be/have #1029
  • Immutable, once submitted it won't change.
  • Metadata: id, creation date, created by, comments. Maybe in a future iteration a "parent_version_id"
  • New versions will be created from last one (maybe you can select one specific version as a 2nd iteration), allowing the user to edit each config inside it.
  • Ensure atomicity for new version transaction to avoid partial saves.
  • The version should be a schema containing a reference pointing to all other configurations (like map, characters).
  • It should store the 'version number'. It will store arena version + autoincremental per copy for that arena version.
• UI. List current version params + view for all versions. This view should show which is the current one and allow the user to edit which one is the new current one. #1030
• Manage and automate DB backups.