Campaign deletion errors out due to storage costs

[jorgeavaldez]

Looks like it errors out when calling campaign.clear_state

errors.js:18 Uncaught (in promise) Error: The account  wouldn't have enough balance to cover storage, required to have 131319891695763869741440 yoctoNEAR more
    at Object.parseRpcError (rpc_errors.js:41)
    at json-rpc-provider.js:169
    at async Object.exponentialBackoff [as default] (exponential-backoff.js:7)
    at async JsonRpcProvider.sendJsonRpc (json-rpc-provider.js:154)
    at async account.js:94
    at async Object.exponentialBackoff [as default] (exponential-backoff.js:7)
    at async Account.signAndSendTransaction (account.js:90)
    at async Contract.clear_state (Сontract.js:39)
    at async Object.[Symbol.asyncIterator] (onDeleteCampaign.js:15)
    at async Object.fn (onDeleteCampaign.js:53)

[jorgeavaldez]

I resolved this by bumping the initial campaign contract storage amount by 0.2 near and adding .01 to each link

https://github.com/NEAR-labs/ui.near-linkdrop/blob/master/src/store/campaigns/thunks/onCreateCampaign.js#L12

  const res = 2.7 + totalKeys * (Number(amountPerLink) + 0.03); // TODO change coefficients

[eclipseeer]

Thanks for your contribution, I'll check it and merge