[PIE-1] Initialise Project (!2)

Init Svelte project, Pocketbase backend, API connection, and mostly Dockerised
Co-authored-by: june <self@breadone.net>
Co-committed-by: june <self@breadone.net>

.gitignore

@@ -1,2 +1,24 @@
-*.DS_Store
 node_modules
+
+# Output
+.output
+.vercel
+.netlify
+.wrangler
+/.svelte-kit
+/build
+/data
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*