suboptimal note selection logic

[TalDerei]

notes indexed by the same assetId should be strictly ordered by decreasing amounts in the SPENDABLE_NOTE indexedDB table, reducing extraneous spends when balancing a transaction.

update: actually we can't handle it at the storage package level, as the order might be overridden at the wasm level. We can handle sorting during note prioritization at the wasm level, or migrate note prioritization into the ActionList and manage it at the rust level.