Upgrade chatbot from 6.4.1 to 6.5.0 require monaco-editor

[aljesusg]

This is the error in yarn

failed to compile
Module not found: Error: Can't resolve 'monaco-editor' in '/home/agutierr/Projects/kiali/kiali/frontend/node_modules/@patternfly/chatbot/dist/esm/CodeModal'
ERROR in ./node_modules/@patternfly/chatbot/dist/esm/CodeModal/CodeModal.js 51:28-51
Module not found: Error: Can't resolve 'monaco-editor' in '/home/agutierr/Projects/kiali/kiali/frontend/node_modules/@patternfly/chatbot/dist/esm/CodeModal'

After install "monaco-editor": "^0.52.0",
Running the frontend dev server, webpack emits warnings originating from monaco-editor pulled in by @patternfly/chatbot.

Warning
(46:2) autoprefixer: end value has mixed support, consider using flex-end instead

Search for the keywords to learn more about each warning.
To ignore, add // eslint-disable-next-line to the line before.

WARNING in ./node_modules/monaco-editor/esm/vs/base/common/marked/marked.js
Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from '/home/agutierr/Projects/kiali/kiali/frontend/node_modules/monaco-editor/esm/vs/base/common/marked/marked.umd.js.map' file: Error: ENOENT: no such file or directory, open '/home/agutierr/Projects/kiali/kiali/frontend/node_modules/monaco-editor/esm/vs/base/common/marked/marked.umd.js.map'

WARNING in ./node_modules/monaco-editor/esm/vs/editor/contrib/hover/browser/hover.css (./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[1]!./node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-loader/dist/cjs.js!./node_modules/monaco-editor/esm/vs/editor/contrib/hover/browser/hover.css)
Module Warning (from ./node_modules/postcss-loader/dist/cjs.js):
Warning

(46:2) autoprefixer: end value has mixed support, consider using flex-end instead

webpack compiled with 2 warnings

Expected

Installed monaco-editor and no warnings from node_modules on startup (or at least no missing source map warnings).

Environment

OS: Fedora Linux 42 (kernel 6.18.5)
Node: 20.19.1
Yarn: 1.22.22
Product affected: Kiali
PR with the feature => kiali/kiali#9006

---

Jira Issue: PF-3439

[thatblindgeye]

We will use this issue to track investigation into a solution that doesn't require installing monaco-editor manually.

[rebeccaalpert]

We had to back it out because some consumers had bundle size restrictions. Adding Monaco ourselves was meaning that they couldn't run code with our PatternFly extension in it. What we can do is better document what is required in the README as a partial fix now and look into the second piece later on.