fix: Isometric tile map component uses scale when getting block from position

[RFager]

Description

Taking scale in consideration when getting a block from IsometricTileMapComponent. This will allow for scaled maps to return the correct block.

Checklist

• The title of my PR starts with a Conventional Commit prefix (fix:, feat:, docs: etc).
• I have read the Contributor Guide and followed the process outlined for submitting PRs.
• I have updated/added tests for ALL new/updated/fixed functionality.
• I have updated/added relevant documentation in docs and added dartdoc comments with ///.
• I have updated/added relevant examples in examples.

Breaking Change

• Yes, this is a breaking change.
• No, this is not a breaking change.

Related Issues

[spydon]

Lgtm! Would be great with a small test that verifies that it fixes the bug (and to make sure that no regression is done later).

https://github.com/flame-engine/flame/blob/main/packages/flame/test/components/isometric_tile_map_component_test.dart

[RFager]

The functions for getting blocks and positions related to the blocks. I've also modified the blocks test to use scale.

[spydon]

Lgtm! You just need to run melos format or flutter format . and it should fix the analyze and formatting issues.