Fix ignored jupyter-book web accessibility issues (and remove ignore)

[d33bs]

Existing issue check

• I found no existing issues covering this topic.

Description

When implementing #7 several web accessibility issues were discovered which stem from jupyter-book template-related HTML. This issue focuses on resolving those issues and removing the need for the ignore rules from pa11y.

Ignored rules (within pa11y.json):

// search form has no submit button
"WCAG2AA.Principle3.Guideline3_2.3_2_2.H32.2",
// heading tags detected with no content
"WCAG2AA.Principle1.Guideline1_3.1_3_1.H42.2",
// search form duplicate id
"WCAG2AA.Principle4.Guideline4_1.4_1_1.F77"

Reproducible example

n/a

Versions

Any

Would you like to work on a solution for this?

• Yes I am willing to submit a PR!

[d33bs]

I've opened executablebooks/jupyter-book#2135 based on the current status here and what was mentioned in #7 .