[Bug] Fix No Alt Texts

## Description
On the homepage of the Vocabulary website, there is no alt text provided to describe the missing images for users with disabilities, such as individuals who are visually impaired.

## Expectation
All images should include descriptive alt text to improve accessibility.

## Environment

- Device: ( laptop)
- OS: (macOS Ventura 13.2.1)
- Browser: (Chrome)

## Additional context
The issue will be resolved by adding appropriate alt text for accessibility.

## Resolution
I would be interested in resolving this bug.

Start at the Vocabulary website homepage and inspect its images to identify those without alternative text. Add descriptive alt text for each relevant image, then verify the homepage with an accessibility check and confirm that all images have appropriate descriptions.

Written by the indexing model from the issue text.