[DOCS][BUG] LOR SEA region, VAL new platforms

[MingweiSamuel]

lor-ranked-v1.getLeaderboards is showing a SEA region (south east asia I assume). Maybe its appearance is a mistake, but if not it is missing from the regional routing values list. (Also this list is only in the LoL section when it also applies to LoR and TFT).

[RiotTuxedo]

With the launch of Legends of Runeterra, the team has chosen to expose the ranked leaderboard for the SEA region. I'll make sure to update the docs.

[MingweiSamuel]

Also posting VAL's new platforms: "APAC" | "BR" | "EU" | "KR" | "LATAM" | "NA"| "PBE1" so we don't need to create a new issue. Though "KR" and "PBE1" aren't really new

EDIT: "PBE1" has been removed

[MingweiSamuel]

For people's reference here are the region sets and their endpoints:

{
  "br1 | eun1 | euw1 | jp1 | kr | la1 | la2 | na1 | oc1 | ru | tr1": [
    "champion-mastery-v4",
    "champion-v3",
    "clash-v1",
    "league-exp-v4",
    "league-v4",
    "match-v4",
    "spectator-v4",
    "summoner-v4",
    "tft-league-v1",
    "tft-summoner-v1",
    "third-party-code-v4"
  ],
  "br1 | eun1 | euw1 | jp1 | kr | la1 | la2 | na1 | oc1 | pbe1 | ru | tr1": [
    "lol-status-v3"
  ],
  "americas | asia | europe | sea": [
    "lor-ranked-v1"
  ],
  "americas | asia | europe": [
    "tft-match-v1"
  ],
  "americas": [
    "tournament-stub-v4",
    "tournament-v4"
  ],
  "apac | br | eu | kr | latam | na": [
    "val-content-v1",
    "val-match-v1"
  ]
}

[tisbells]

Closing out old issues. The SEA routing value serves the APAC shard (previously was ASIA and SEA) and this is documented in the endpoint. Feel free to reopen or comment if you feel this is in error.