Add episode summary display and update service worker cache version

[OrF8]

This pull request adds episode summaries to the Seinfeld random episode app and improves the user experience by displaying a summary for each episode, handling errors gracefully, and updating the cache version for offline support. The most important changes are grouped below:

Episode Summary Feature:

• Added a new <p id="summary" class="episode-summary"> element to index.html to display episode summaries.
• Created a getEpisodeDetails function in script.js to fetch both the episode image and summary, and added a stripHtml utility to clean up summary text.
• Updated renderSample in script.js to show "Loading summary..." while fetching, display the summary when available, and handle errors by showing an appropriate message. [1] [2] [3]
• Added CSS styling for .episode-summary in style.css for improved appearance.

Offline Support:

• Incremented the service worker cache version to ensure users receive the latest assets and summary feature updates.

[Copilot]

Pull request overview

Adds episode summaries to the Seinfeld random episode app UI by fetching and rendering the episode summary from TVMaze, plus bumps the service worker cache version for offline updates.

Changes:

• Add a summary <p id="summary"> to the episode metadata section and style it via .episode-summary.
• Replace image-only fetch with getEpisodeDetails() to fetch both image URL and summary (with HTML stripping).
• Update service worker cache name to a new version.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
index.html	Adds a dedicated summary element in the episode metadata block.
script.js	Fetches/parses episode summaries and updates render flow to show loading/error states.
style.css	Styles the new summary text block.
service-worker.js	Increments cache version string for offline asset refresh.

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[Copilot]

caches.match(event.request) searches across all caches, so bumping CACHE_NAME alone may not guarantee clients get updated assets (an older cache can still satisfy the request). Add an activate handler to delete old cache names and/or change the fetch handler to match within CACHE_NAME specifically (e.g., caches.open(CACHE_NAME).then(cache => cache.match(req))).

[Copilot]

summaryEl is initialized at the bottom of the file, separated from the other DOM element lookups at the top. For readability and to avoid future ordering issues, consider moving this getElementById alongside the other const ...El = document.getElementById(...) declarations near the start.

[OrF8]

@copilot open a new pull request to apply changes based on this feedback