User:Snowmanonahoe/Hatnote cleanup

My ideas for AWB rules to standardize hatnotes. These would be cosmetic changes, but from my understanding those are allowed if substantive changes are made somewhere else.

I use Self-reference because its more common, but for each of these self-reference rules there can be a very similar rule of Hatnote. There are, of course, many more of these that are possible.
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