[FEATURE REQUEST] All Mons available for teambuilding with no format chosen

[Tvpattack]

When teambuilding, before a format is selected or as a format, all pokemon are available with their most recent movesets barring moves that were removed (unless that is also made to be a separate option)

What this solves:

• Allows for a format for custom battles
• Gives users the opportunity to see where their favourite mons were left off moveset-wise
• Having the Default ruleset as generation IX doesn't actually show off the full competitive pool, as while that is the legal set of mons, it doesn't do well to give players who are browsing through mons they enjoy playing the ability to see what they did.

Other solutions:

• Have the mons that are illegal not have their entire moveset be illegal as well, excluding moves that would have been disabled from the wider pool.
• Allow for custom teambuilding that uses the challenge command logic to determine legality (this can include a new moves category that removes moves that would no longer be legal in the current generation regardless of whether the mon could learn it previously)
  -- Have previously learnable moves be in a category below the rest to show that they are no longer legal, but historically they were.