Fix problematic applyBindings

https://github.com/dimagi/commcare-hq/pull/5038 exposed a bunch of knockout errors, as detailed [here](https://github.com/dimagi/commcare-hq/pull/5083#issuecomment-67017181).

If you ever get the error `Uncaught Error: You cannot apply bindings multiple times to the same element.`, this PR fixes that a bunch of times, so it makes a good example to work from.

I replicated each of the individual cases fixed here and confirmed that the change fixes them.