Fix #7202: Wallet Market Tab

[nuo-xu]

Summary of Changes

We are introducing a tab Market which will display the top 250 tokens in the market from CoinGecko

This pull request fixes #7202

Submitter Checklist:

• Unit Tests are updated to cover new or changed functionality
• User-facing strings use NSLocalizableString()
• New or updated UI has been tested across:
  • Light & dark mode
  • Different size classes (iPhone, landscape, iPad)
  • Different dynamic type sizes

Test Plan:

1. Open wallet and go to the new Market tab
2. Observe there is a loading state before listing top 250 tokens
3. Observe token's name, symbol, logo, current price and price delta is being displayed
4. Check click any token will bring you to token detail screen
5. Inside token detail screen there shouldn't be any information related to current selected network (which you can check you current selected network inside buy/send/swap screen)
6. Inside token detail screen, there shouldn't be any account balances or transactions listed
7. Inside token detail screen, check if price, price delta and price history are being listed.
8. Inside token detail screen, check if rank, 24h volume and market cap information are being listed
9. Some tokens will have a Buy button available inside token detail screen, when this token's symbol can be found in all available buy tokens with all supported providers in CURRENT SELECTED network (For example, if your current selected network is Eth mainnet, then Eth token detail screen will have the Buy button, but not Solana token)

Screenshots:

Reviewer Checklist:

• Issues include necessary QA labels:
  • QA/(Yes|No)
  • bug / enhancement
• Necessary security reviews have taken place.
• Adequate unit test coverage exists to prevent regressions.
• Adequate test plan exists for QA to validate (if applicable).
• Issue and pull request is assigned to a milestone (should happen at merge time).

[StephenHeaps]

We may want to cache the token details so it doesn't reload when popping the asset detail off navigation stack which causes us to lose scroll position (same logic would apply when switching to this activity tab after previously loading the market data):

cache.market.data.mp4

Update: Resolved by checking if marketStore.coins.isEmpty before showing loading state.

[StephenHeaps]

A few code comments, functionality wise it's working great 👍.

[StephenHeaps]

Nice work 🎉