Users are unable to make a One-time Donation using cbBTC

[LatifatAbdullahi]

When Users attempt to make a one-time donation, an error message is displayed "Transaction failed"

AC

• users should be able to make a one-time donation to a project with NO additional donation to Giveth
• users should be able to make a one-time donation to a project with WITH additional donation to Giveth
• price for cbBTC should show correctly
• user should be able to click "available" under amount input box which inserts user's current balance into input field for amount
• donation in cbBTC above $5 in value should show in eligible donations in GIVbacks data -> https://givbacks.giveth.io/api-docs/#/default/get_eligible_donations (need Giveth VPN enabled)

[kkatusic]

@divine-comedian can I do hot-fix for this one?

[divine-comedian]

suggesting at some point to refactor the code - don't switch as much between bigint to number - only switch to bigInt at once when user is finally submitting donation.

can make a quick fix for handling 8 decimals but code might need a bigger refactor. will try to make hotfix but otherwise needs to rewrite funciton entirely.