Remove block parameters from input methods

[nimmolo]

Re: comment here @bradgessler noticed while reviewing another PR of mine that Superform's input method has an issue with its signature: input elements are void/self-closing HTML elements and should not accept blocks. This PR removes the & block parameter from:

• Input component's view_template method
• All HTML5 input convenience methods (text, email, password, hidden, number, date, time, file, etc.)

Changes

• lib/superform/rails/components/input.rb: Removed & from view_template(&) → view_template
• lib/superform/rails/field.rb: Removed & from all 17 input convenience methods
• Tests: Added 9 tests verifying that blocks are properly ignored and don't render content

Test Coverage

All 109 tests passing. New tests verify backwards compatibility - blocks can still be passed without errors, but content is correctly ignored.

[nimmolo]

Noticing that you can pass a block to a textarea input and superform will interpret it as the field's content. However, if i'm not mistaken, this PR doesn't affect textarea.