feat: update documentation to reflect configuration changes and add progress callouts

Added callouts to various documentation modules indicating that the documentation is a work in progress. Updated references from `initialConfig` to `config` in multiple sections to align with recent changes in configuration handling.

examples/node/index.js

@@ -9,7 +9,7 @@ const config = {
    connection: {
       url: "file:data.db",
    },
-   initialConfig: {
+   config: {
       media: {
          enabled: true,
          adapter: {

examples/react/src/App.tsx

@@ -87,7 +87,7 @@ async function setup(opts?: {
    const app = App.create({
       connection,
       // an initial config is only applied if the database is empty
-      initialConfig: {
+      config: {
          data: schema.toJSON(),
       },
       options: {