fix icon streamer

[tomvita]

What happens:

• GlossyIcon stores a raw nxui::Texture* pointing directly into m_pool (a std::vector)
• When navigating from page 0 to page 1, onPageChanged(1) needs to load page 2 icons (prefetch via kPageMargin=1). No free slots exist, so m_pool.reserve() is called to grow the pool
• reserve() reallocates the vector, moving all TexSlot objects to new memory. Every Texture* pointer previously given to page 0 and page 1 icons now points to freed memory
• Page 1 (the current page) renders blank because m_tex is dangling
• The icons are still marked as "loaded" in m_appToSlot, so they never get re-loaded — until the user navigates far enough away to evict them, then comes back

The fix (lines 175-187):
After reserve(), compare m_pool.data() before and after. If the pool was relocated, iterate all pool slots and re-wire the Texture* pointer on every surviving GlossyIcon. This is O(pool_size) and only runs when an actual reallocation occurs, so there's negligible performance impact.

[PoloNX]

Hi, I already fixed it so I don't think it's a great idea. what do you think ?

[tomvita]

There are many ways to fix this problem, just wanted to share what I did. By the way taking over eshop don't work on HOS 22. Just move it to another applet and the crash stops.

[PoloNX]

I'll do that. But why taking over eshop doesn't work now? I didn't see something about eshop in 22 changelog

[tomvita]

You can try put something else there and it will crash too. Your home menu can sit there as long as you don't call it though.