[BUG] Pico Search component doesn't work as expected

[StanleyTack]

Describe the bug Using the Pico Search component does not reproduce UI elements like in teh pico docs https://picocss.com/docs/group#search

Minimal Reproducible Example

from fasthtml.common import *
app, rt = fast_app(
    hdrs=(picolink,),
)
def search_form():
    return Search(
        Input(name="search", type="search", placeholder="search"),
        Input(type="submit", value="search"),cls="container")

result:

<search class="container">       
       <input name="search" type="search" placeholder="search">
       <input type="submit" value="search">
</search>

Expected behavior Expected:

Visually, the textbox has the correct style but the submit button does not. Expected html per picocss docs

<form role="search">
  <input name="search" type="search" placeholder="Search" />
  <input type="submit" value="Search" />
</form>

Environment Information Please provide the following version information:

• fastlite version: 0.0.11
• fastcore version: 1.7.10
• fasthtml version: 0.6.9

Confirmation Please confirm the following:

• [x] I have read the FAQ (https://docs.fastht.ml/explains/faq.html)
• [x] I have provided a minimal reproducible example
• [x] I have included the versions of fastlite, fastcore, and fasthtml
• [x] I understand that this is a volunteer open source project with no commercial support.

Additional context Add any other context about the problem here.

Screenshots If applicable, add screenshots to help explain your problem.