[Bug]: Filtered balance on Split's notes not calculating properly

### Verified issue does not already exist?

- [x] I have searched and found no existing issue

### What happened?

When trying to filter transactions by Note, the "Filtered Balance" doesn't include the split if each line doesn't also have the note.

I would expect that the split be included if each split note is empty. If each split has a different note, then those splits should be filtered accordingly. For example, in the image, if the note on the External Purchases split said "Family" I would not expect it to calculate in the "contains kro" filter. However, those splits that are empty should calculate. Otherwise, every split needs to have all fields filed out to calculate properly.


### How can we reproduce the issue?

How can we reproduce the issue?
Create a split transaction, notate the main split, but not the individual sub-splits, filter by note. Filtered Balance will be different than expected, and not show non-notated sub-splits.

### Where are you hosting Actual?

Locally via Yarn

### What browsers are you seeing the problem on?

Chrome, Firefox

### Operating System

Windows 11