Fixed Issue #1346 child node selection, added last word handling, removed u…

[saikishoreMSK]

…nnecessary span spaces, and added element existence checks

Description

This pull request addresses multiple issues in the typing game code, including:

1. Child Node Selection:

• Replaced childNodes with children in quoteElement to ensure only element nodes are selected, avoiding interference from text nodes.

2. Handling the Last Word:

• Added logic to handle the case when the last word is correctly typed. The game now displays a completion message and disables further input.

3. UI Element Existence Check:

• Added checks to ensure quoteElement, messageElement, and typedValueElement exist in the DOM before manipulation, preventing potential runtime errors.

4. Removed Extra Spaces in span Elements:

• Removed unnecessary spaces in generated elements for each word, ensuring accurate highlighting without display issues.

[github-actions]

This PR has not seen any action for a while! Closing for now, but it can be reopened at a later date.