(fix): Rename LbInfo interface

[aspnxdd]

Rename PositionInfo to LbInfo, as this interface references the Lb (Pool) data.

[aspnxdd]

In the class DLMM, method getAllLbPairPositionsByUser:

if (positionData) {
        positionsMap.set(lbPair.toBase58(), {
          publicKey: lbPair,
          lbPair: lbPairAcc,
          tokenX,
          tokenY,
          lbPairPositionsData: [
            ...(positionsMap.get(lbPair.toBase58())?.lbPairPositionsData ?? []),
            {
              publicKey: positionPubkey,
              positionData,
              version,
            },
          ],
        });
      }

The publicKey refers to the lbPair, not the position pubkey. This suggests that the interface refers to a Lb, not a position.

[aspnxdd]

@dannxbt just tagging you for visibility!

FYI It should also be renamed in python files (class PositionInfo():) , .md files and in some comments, I can do that as well.