[a11y] Issue 8: Missing main element/landmark (Participation Page)

[NewJerseyStyle]

Description:

Similar to Issue #4, the participation page lacks a main element/landmark and various other landmarks (header, nav, footer). These elements are essential for defining page structure and improving accessibility for assistive technologies.

Steps to Reproduce:

1. Navigate to the participation page (e.g. https://pol.is/4cvkai2ctw)
2. Inspect the HTML structure.

Expected Behavior:

Presence of main, header, nav, and footer elements for proper semantic structure.

Actual Behavior:

Missing landmark elements, hindering accessibility.

Component/Area: Participation page

Source: Auto evaluation

Affected Elements: header, nav, main, footer

[thomassth]

Should be fixed with #32

[NewJerseyStyle]

True, we don't have navigation as its single page app