chore: webpack example update + bump dependency versions

[viglucci]

Updates the browser-bundle webpack example to show the generation of two "libraries" which is more representation of a real world scenario. Additionally updates dependency versions to adress dependabot alerts.

Motivation:

Example matches real-world scenario better + adress dependabot alerts.

Modifications:

• Bumped ws & webpack dependency versions in webpack examples
• Updated webpack/browser-bundle example to produce two "libraries" and re-arrange source scripts

Result:

n/a

[Copilot]

Pull Request Overview

This PR modernizes the webpack examples by bumping Node and key dependency versions, improves error handling in the simple client, and restructures the browser-bundle setup to output two libraries with updated source layout.

• Bump Node engine and major deps (ws, webpack, webpack-cli, webpack-dev-server) across examples
• Enhance simple client with try/catch on connection failures
• Refactor browser-bundle: split entry into rsocket and app, move assets into src/, update HTML and README paths

Reviewed Changes

Copilot reviewed 10 out of 15 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/rsocket-examples/src/webpack/simple/server/package.json	Bumped Node engine to ^18; updated ws to ^8.18
packages/rsocket-examples/src/webpack/simple/client/package.json	Bumped Node engine to ^18; updated webpack deps to major ^5
packages/rsocket-examples/src/webpack/simple/client/index.js	Wrapped connector.connect() in try/catch to show UI error
packages/rsocket-examples/src/webpack/browser-bundle/webpack.config.js	Split entry into two libraries (rsocket, app); updated output and HTML plugin paths/inject
packages/rsocket-examples/src/webpack/browser-bundle/src/index.html	Added base HTML under src/
packages/rsocket-examples/src/webpack/browser-bundle/src/app.js	New example app script handling send/connect UI
packages/rsocket-examples/src/webpack/browser-bundle/package.json	Bumped Node engine to ^18; updated webpack deps to major ^5
packages/rsocket-examples/src/webpack/browser-bundle/README.md	Updated paths and corrected typos
packages/rsocket-examples/package.json	Updated ws dependency to ^8.18

Comments suppressed due to low confidence (2)

packages/rsocket-examples/src/webpack/browser-bundle/webpack.config.js:18

• The comment refers to 'library' but the entry names are 'rsocket' and 'app'. Consider updating it to "[name] will be replaced by 'rsocket' or 'app'" for accuracy.

    filename: "[name].js", // [name] will be replaced by 'app' or 'library'

packages/rsocket-examples/src/webpack/browser-bundle/src/app.js:3

• [nitpick] The name _rsocket is similar to the global rsocket library export. Consider renaming it (e.g., client, socketClient) to avoid confusion.

var _rsocket = null;