feat(vim): improve transaction jumping in ledger files
feat(vim): improve transaction jumping in ledger files

This will work even if there aren't blank lines between transactions,
unlike the default `{`/`}` behavior.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent