chore: Add export of MarketDataDetails type (#4622)

## Explanation

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your changes:

* What is the current state of things and why does it need to change?
`metamask-mobile` uses the `MarketDataDetails` type, so it needs to be
exported from this repository
* What is the solution your changes offer and how does it work? I made
the `MarketDataDetails` get exported
* Are there any changes whose purpose might not obvious to those
unfamiliar with the domain? No
* If your primary goal was to update one package but you found you had
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* If you had to upgrade a dependency, why did you do so? n/a
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## References


For example:

Helps to fix: MetaMask/metamask-mobile#10205

## Changelog

n/a

## 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

Co-authored-by: kylan <[email protected]>

packages/assets-controllers/src/TokenRatesController.ts

@@ -65,7 +65,7 @@ export type ContractExchangeRates = {
  [address: string]: number | undefined;
 };
 
-type MarketDataDetails = {
+export type MarketDataDetails = {
  tokenAddress: `0x${string}`;
  currency: string;
  allTimeHigh: number;

packages/assets-controllers/src/index.ts

@@ -109,6 +109,7 @@ export type {
  TokenRatesControllerMessenger,
  TokenRatesControllerState,
  TokenRatesControllerStateChangeEvent,
+ MarketDataDetails,
 } from './TokenRatesController';
 export {
  getDefaultTokenRatesControllerState,