Refactor PWA caching and image generation scripts

- Updated `generate-pwa-cache-list.js` to include images directory and remove duplicate file entries.
- Refactored `generate-svg-variants.js` to utilize collections from a centralized source and renamed generation directory variable.
- Modified `update-data.js` to align with new directory structure for images and variants, ensuring proper paths are used.
- Adjusted `collections.js` to standardize directory naming for variants.
- Enhanced Svelte components (`Actions.svelte`, `CardFull.svelte`, `CardMiddle.svelte`, `CardSmall.svelte`, `CardTiny.svelte`) to utilize context for collection management, simplifying image URL generation.

scripts/generate-svg-variants.js

@@ -2,19 +2,8 @@
 
 const fs = require('fs');
 const path = require('path');
+const { collections } = require('../src/collections.js');
 
-const collections = [
-  { name: 'logos', label: 'Logos',
-    baseDir: 'logos',
-    genDir: 'logos_variants',
-    dataFile: 'data/logos.json'
-  },
-  { name: 'flags', label: 'Flags',
-    baseDir: 'flags',
-    genDir: 'flags_variants',
-    dataFile: 'data/flags.json'
-  }
-];
 
 // Accept collection as a CLI arg or env var
 const collectionArg = process.argv.find(arg => arg.startsWith('--collection='));
@@ -22,7 +11,7 @@ const collectionName = collectionArg ? collectionArg.split('=')[1] : (process.en
 const collection = collections.find(c => c.name === collectionName) || collections[0];
 
 const LOGOS_DIR = path.join(__dirname, '..', 'public', collection.baseDir);
-const LOGOS_GEN_DIR = path.join(__dirname, '..', 'public', collection.genDir);
+const LOGOS_GEN_DIR = path.join(__dirname, '..', 'public', collection.varDir);
 
 // Try multiple possible locations for logos.json
 const POSSIBLE_LOGOS_JSON_PATHS = [