refactor(swap): Move calculations to swap package

[jorbuedo]

• Removes calculations from app

• Adds calculations in swap reducer

• Limit calculations need discussing

• We use in some places the pool.price, which is always tokenA/tokenB. We would have to calculate it instead, to use tokenB/tokenA when appropriate.

• Precision, divisions, bigint, binumber, etc. may need a second pass

[SorinC6]

@stackchain related to the price calculation when there is a limit order , I will propose to use the old formula for now - until we got more clarification specific to why is not taking the pool fee in consideration just to get the PR unblocked and will update it after more tests

• regarding pool.price let's use tokenB/tokenA when appropriate 🤔

[michaeljscript]

Is the .map needed?

[jorbuedo]

@MichalSzorad sort modifies the array, which could affect other things outside this function. toSorted would be the newer function, but doesn't seem to work in our setup. The map is just to clone it. Could have used any of the ways to do it, come to think of it [...poolList].sort(...) may have been shorter.