Update submission on {enter} to only occur if more than 1 input element that blocks implicit submission when no submit buttons

[jennifer-shehane]

• Add method to check for inputs of type that block implicit submission
• Add test to ensure form is submitted when only 1 field blocking
  implicit submission.
• close type('{enter}') doesn't work when only 1 input blocking implicit submission #4495

[brian-mann]

The way the spec is written reads awkward - it provides the rule and then backs into "the exception" by redefining all the previous inputs as if they are "the rule".

I'm suggesting that the naming be re-written in the positive / active form - which is "the rule", and the exception being handled later on which overrides "the rule".

These input elements do not BLOCK implicit submission - they actually CREATE implicit submission - and only if there are MORE than 1 of them would that become "the exception" where it DOES NOT implicitly submit the form.

The previous language + logic was correct except we needed to filter down / reduce the list of inputs that cause implicit submission. This PR is written in a way where it seems it's doing a whole lot more because of the reversal of the language, making it difficult to understand why or what is actually happening.

[jennifer-shehane]

So I also thought that the listing of input types was strange to omit datetime altogether. Maybe it's an oversight - will need to manually check how Chrome/Firefox deal with datetime inputs and implicit submission.

[jennifer-shehane]

Actually, it appears that inputs of type datetime are no longer supported. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/datetime

Not exactly sure how to handle this, since we specifically mention supporting datetime inputs in .type() docs. https://on.cypress.io/type#Supported-Elements

[kuceb]

@jennifer-shehane it was deprecated in favor of datetime-local, which we handle already, so we should probably just find-replace datetime with datetime-local in the documentation/messaging

Code changes addressed