[Do Not Merge] - Fix: Splash

[0xpeluche]

There is an issue with ADA's decimals, which is causing exorbitant figures. The logic is functional, but do not merge until the changes on the ADA token are made; otherwise, it will display values that are 1e6 times too high

[llamatester]

Error while running adapter at projects/splash.js:

SyntaxError: Cannot convert 45930460.8671060000 to a BigInt
Truncated error stack:
    at convertToBigInt (/home/runner/work/DefiLlama-Adapters/DefiLlama-Adapters/node_modules/@defillama/sdk/build/generalUtil.js:57:16)
    at BigInt (<anonymous>)
    at cardanoTVL (/home/runner/work/DefiLlama-Adapters/DefiLlama-Adapters/projects/splash.js:6:7)
    at async getTvl (/home/runner/work/DefiLlama-Adapters/DefiLlama-Adapters/test.js:52:23)
    at async /home/runner/work/DefiLlama-Adapters/DefiLlama-Adapters/test.js:145:9