feat: enhance podcast functionality and build pipeline

- Dynamically resolve image paths for podcast episodes in `episodes.11tydata.js`
- Add podcast metadata handling with inferred URLs for MP3 and transcripts
- Introduce search functionality with Lunr.js and a search index generator
- Update Eleventy path prefix handling to support environment variable override
- Add `.mp4` files to `.gitignore`
- Expand VSCode settings to include Markdown-Eleventy support and improved terminal history
- Add deployment script (`deploy.sh`) with remote rsync-based deployment and permission handling
- Adjust episode layout to use dynamic image paths and updated podcast metadata
- Add search and members page updates, including new URLs and search integration
- Update dependencies to include `html-to-text` and related packages for search indexing

layouts/podcast.11ty.js

@@ -65,7 +65,7 @@ class PodcastFeed {
       if (episode.data.podcast.transcriptUrl) {
         item.customElements.push({ 'podcast:transcript': {_attr:{
           url:`${episode.data.podcast.transcriptUrl}`,
-          type:"application/srt",
+          type:"application/x-subrip",
           language:"en-us"
         }}
       })