Docs: Fix TileMap::map_to_world description

[kleonc]

Description of TileMap::map_to_world wrongly stated it returns a global position. This fix is analogous to #25136.
Relevant source code:

godot/scene/2d/tile_map.cpp

Lines 1535 to 1537 in d5bda59

	Vector2 TileMap::map_to_world(const Vector2 &p_pos, bool p_ignore_ofs) const {
	return _map_to_world(p_pos.x, p_pos.y, p_ignore_ofs);
	}

godot/scene/2d/tile_map.cpp

Lines 1470 to 1492 in d5bda59

	Vector2 TileMap::_map_to_world(int p_x, int p_y, bool p_ignore_ofs) const {
	Vector2 ret = get_cell_transform().xform(Vector2(p_x, p_y));
	if (!p_ignore_ofs) {
	switch (half_offset) {
	case HALF_OFFSET_X:
	case HALF_OFFSET_NEGATIVE_X: {
	if (ABS(p_y) & 1) {
	ret += get_cell_transform()[0] * (half_offset == HALF_OFFSET_X ? 0.5 : -0.5);
	}
	} break;
	case HALF_OFFSET_Y:
	case HALF_OFFSET_NEGATIVE_Y: {
	if (ABS(p_x) & 1) {
	ret += get_cell_transform()[1] * (half_offset == HALF_OFFSET_Y ? 0.5 : -0.5);
	}
	} break;
	case HALF_OFFSET_DISABLED: {
	// Nothing to do.
	}
	}
	}
	return ret;
	}

[akien-mga]

Sorry for the delay reviewing this, the fix is correct 👍

I force pushed a rebased commit to fix the Windows CI which failed for unrelated reasons.

[akien-mga]

Thanks! And congrats for your first merged Godot contribution 🎉

[akien-mga]

Cherry-picked for 3.2.4.