Image caching

[slouge]

Description

Based on official Image .Net MAUI documentation here caching feature is available by design using CacheValidity

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` But today trying to understand why caching doesn't work on my application, i was checking the source code of [UriImageSource.cs](https://github.com/dotnet/maui/blob/main/src/Controls/src/Core/UriImageSource.cs) `async Task GetStreamAsync(Uri uri, CancellationToken cancellationToken = default(CancellationToken)) { cancellationToken.ThrowIfCancellationRequested(); Stream stream = null; if (CachingEnabled) { // TODO: CACHING https://github.com/dotnet/runtime/issues/52332 // var key = GetKey(); // var cached = TryGetFromCache(key, out stream) if (stream is null) stream = await DownloadStreamAsync(uri, cancellationToken).ConfigureAwait(false); // if (!cached) // Cache(key, stream) } else { stream = await DownloadStreamAsync(uri, cancellationToken).ConfigureAwait(false); } return stream; }` I was a little bit surprised to see thath caching is commented, i'm missing something ? ### Steps to Reproduce _No response_ ### Link to public reproduction project repository _No response_ ### Version with bug 8.0.40 SR5 ### Is this a regression from previous behavior? Yes, this used to work in Xamarin.Forms ### Last version that worked well Unknown/Other ### Affected platforms Android ### Affected platform versions _No response_ ### Did you find any workaround? No ### Relevant log output _No response_

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Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

Open similar issues:

• UriImageSource caching not implemented for Windows & check TODO comments around caching in general (#9138), similarity score: 0.82
• Images with CachingEnabled are never updated (#12376), similarity score: 0.80
• Maui Blazor image cache is not working (#8279), similarity score: 0.74
• [Android] URL images loaded at runtime disappear after navigating away and back (#14205), similarity score: 0.72

Closed similar issues:

• Unable to cache image Exception after version 8.0.9 (#21748), similarity score: 0.74

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[QianaJiao]

This issue still exists, and it is the similar issue as https://github.com/dotnet/maui/issues/9138