fix: Episodes not showing on mobile

[schembriaiden]

Pull Request Description

This pull request updates how the crossAxisCount is calculated in several grid layouts to ensure it always has a valid value and avoids runtime errors. The main change is clamping the crossAxisCount to a minimum of 1, which prevents invalid grid configurations if the value is zero or negative.

Grid layout safety improvements:

• Updated crossAxisCount calculation in PosterGrid, EpisodeDetailsList, and EditImageContentState to use .clamp(1, double.maxFinite).toInt(), ensuring the count is always at least 1 and preventing crashes from invalid grid sizes.

Issue Being Fixed

Flutter error: 'package:flutter/src/rendering/sliver_grid.dart': Failed assertion: line 359 pos 15: 'crossAxisCount > 0': is not true.

Resolves #858

Screenshots / Recordings

Tested On

• Android
• Android TV
• iOS
• Linux
• Windows
• macOS
• Web

A test on iOS would also help.

Checklist

• If a new package was added, did you ensure it works for all supported platforms? Is the package well maintained
• Check that any changes are related to the issue at hand.

[PartyDonut]

Thanks 👍🏼