fix(TXL-399): Use contract abi to decode the amounts of token balance…

… changes (#4775)

## Explanation
* Use contract abi's to decode the amounts of token balance changes
– instead of the raw output from a balanceOf call.

## References

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* Fixes #12345
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* Fixes: MetaMask/metamask-extension#26521

## Changelog

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### `@metamask/transaction-controller`

- **FIXED**: Use contract abi's to decode the amounts of token balance
changes – instead of the raw output from a balanceOf call.
## Checklist

- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've highlighted breaking changes using the "BREAKING" category
above as appropriate
- [ ] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

packages/transaction-controller/jest.config.js

@@ -18,9 +18,9 @@ module.exports = merge(baseConfig, {
   coverageThreshold: {
     global: {
       branches: 94.42,
-      functions: 97.46,
-      lines: 98.44,
-      statements: 98.46,
+      functions: 97.45,
+      lines: 98.37,
+      statements: 98.38,
     },
   },