feat(up-next): switch to nitro endpoint

[vladjerca]

Up Next Performance Boost: Introducing the Nitro Endpoint

This pull request introduces a new, optimized "nitro" version of the "up next" endpoint and updates the client to utilize this enhanced functionality.

API Changes

• Added standard and nitro endpoints to the upNext router in the API. This provides two versions of the "up next" endpoint: the standard version and the optimized "nitro" version.

Client Changes

• Updated the upNextRequest function to use the standard endpoint and exported the mapUpNextResponse function for reusability.
• Created a new query file, upNextQueryNitro.ts, for the nitro endpoint, including the request function and query definition.
• Modified the UpNextList.svelte component to dynamically determine the type of endpoint to use based on a URL parameter, ensuring the appropriate query is used for fetching data.
• Updated the useUpNextEpisodes store to accept a type parameter and use the corresponding query for either the standard or nitro endpoint, providing flexibility in data fetching.

(This change, like a skilled mechanic souping up a classic car, introduces a "nitro" version of the "up next" endpoint, significantly boosting performance and efficiency. The updated client components seamlessly integrate with the new endpoint, providing users with a faster and more responsive experience when accessing their upcoming media.)

Test: http://localhost:5173/?up-next=nitro

[deepsource-io]

Here's the code health analysis summary for commits 0b00886..8e7d6e3. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗
Test coverage	✅ Success		View Check ↗

Code Coverage Report

Metric	Aggregate	Javascript
Branch Coverage	27% (down 0.1% from main)	27% (down 0.1% from main)
Composite Coverage	61.6% (down 0.1% from main)	61.6% (down 0.1% from main)
Line Coverage	73.5% (down 0.1% from main)	73.5% (down 0.1% from main)

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