Morecast: Adjust forecast versus actual comparison logic

We need to adjust the logic that compares forecast temps versus actual temps in light of the removal of decimals. For example, the following should not show a = or - icon.


Start by locating the Morecast code that compares forecast temperatures with actual temperatures and controls the comparison icons. Reproduce the example shown in the issue, then verify that differences caused only by removed decimal precision do not display an equals or minus icon.

Written by the indexing model from the issue text.