Fix bugs for fetching crypto prices on chain and displaying very small numbers in tables

[alexferrari88]

Description

Issue #1741 showed two problems:

• A message saying "No data found" while actual data is found
• Very small float numbers are displayed as 0.00
  In this PR I address both problems.

How has this been tested?

$> crypto/onchain
$ crypto/onchain> address -t --address 0x7aE7ACC3B3A9679EAe7e4F7495eAd1429ac7dE7E

Checklist:

• Update our Hugo documentation following these guidelines.
• Update our tests following these guidelines.
• Make sure you are following our CONTRIBUTING guidelines.
• If a feature was added make sure to add it to the corresponding scripts file.

Others

• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My code passes all the checks pylint, flake8, black, ... To speed up development you should run pre-commit install.
• New and existing unit tests pass locally with my changes. You can test this locally using pytest tests/....

[piiq]

@alexferrari88 can you mark to skip the whale alerts key test, please?

there is something wrong with their api

[alexferrari88]

@alexferrari88 can you mark to skip the whale alerts key test, please? there is something wrong with their api

sorry for the dumb question but how should I go about it?

[piiq]

@alexferrari88 I've fixed the whale alerts issue in #1767
Once it's merged you can sync with main and tests will pass here

[piiq]

Resolves #1741