Use tanstack for caching of events

package-lock.json

@@ -11,6 +11,7 @@
 				"@supabase/ssr": "^0.6.1",
 				"@supabase/supabase-js": "^2.50.0",
 				"@sveltejs/adapter-node": "^5.2.12",
+				"@tanstack/svelte-query": "^5.83.0",
 				"googleapis": "^150.0.1",
 				"papaparse": "^5.5.3",
 				"qrcode": "^1.5.4",
@@ -1382,6 +1383,32 @@
 				"vite": "^5.2.0 || ^6"
 			}
 		},
+		"node_modules/@tanstack/query-core": {
+			"version": "5.83.0",
+			"resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.83.0.tgz",
+			"integrity": "sha512-0M8dA+amXUkyz5cVUm/B+zSk3xkQAcuXuz5/Q/LveT4ots2rBpPTZOzd7yJa2Utsf8D2Upl5KyjhHRY+9lB/XA==",
+			"license": "MIT",
+			"funding": {
+				"type": "github",
+				"url": "https://github.com/sponsors/tannerlinsley"
+			}
+		},
+		"node_modules/@tanstack/svelte-query": {
+			"version": "5.83.0",
+			"resolved": "https://registry.npmjs.org/@tanstack/svelte-query/-/svelte-query-5.83.0.tgz",
+			"integrity": "sha512-8tNXhuoizntZXnAzo4yqUWgZZnklQkXGUNpb3YreW68DyCBhhrGbErnrODQs3fVc2ABcMvAHIki5uErbdzXH1A==",
+			"license": "MIT",
+			"dependencies": {
+				"@tanstack/query-core": "5.83.0"
+			},
+			"funding": {
+				"type": "github",
+				"url": "https://github.com/sponsors/tannerlinsley"
+			},
+			"peerDependencies": {
+				"svelte": "^3.54.0 || ^4.0.0 || ^5.0.0"
+			}
+		},
 		"node_modules/@types/cookie": {
 			"version": "0.6.0",
 			"resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.6.0.tgz",