`TrendsChart` and/or `LineChart` components with a11y issues

[userquin]

We've a few a11y issues (go to compare page, add 2 packages and compare, then run LightHouse):

• inputs without labels (adding aria-label attribute to those inputs should be fine)
• increase size to at least 40px at bottom slider (touch targets do not have sufficient size or spacing)

[shuuji3]

@graphieros FYI: If you use Google Chrome (or maybe other chromium-based browser), you can run Lighthouse a11y test on DevTool and can see the recommendations (and referecne links) to fix detected issues.

ref. Introduction to Lighthouse  |  Chrome for Developers