Filtering for the handlebars rank vs occurence

[SHIRO-Suit]

Fix for #2322
Makes both average rank and harmonic rank use only rank frequencies. And average occurence and harmonic occurence use only occurence frequencies.
This prevents having a 10,000 rank frequency word but appears only once in the book and being averaged at 5,000 because of that. completely thowing off anki sort feature.

[Kuuuube]

This is not how handlebars changes work. You cannot change an existing upgrade file. You must create a new one, bump the overall yomitan settings version, and run a handlebars apply within that.

Also not all freq dicts have a frequencyMode in them. Can't break handling of them.

[SHIRO-Suit]

Ok, I agree this PR is quite extreme completely removing them if a single dictionary has this field. Is it what you meant by breaking their handling ? is it preferable to have the legacy dictionaries being counted in the calculations of both rank and occurence then?
Edit: thinking about it, they should just be treated like they were before. only dicts of explicitly opposite mode should be filtered.
Edit 2: the reason I was reluctant is that I was afraid it would keep breaking the average in my case, but the whole point of this PR is to have yomitan handle all cases so that I just have to edit the dicts that cause issues