Before this patch the CodeMirror instance used to create Conditional Breakpoints and Logpoints did not have placeholder text.
This patch adds placeholder text to this CodeMirror instance by:
1. Adding the CodeMirror addon responsible for creating placeholder text.
2. Updating `webpack.config.js`.
3. Regenerating `codemirror.bundle.js`.
4. Matching the color of the placholder text in these CodeMirror instances to the color of placeholder text in the rest of the Debugger.
{F2456834}
Differential Revision: https://phabricator.services.mozilla.com/D89962
This copies what's done in Chrome DevTools to make codeMirror more accessible.
A new input mode is added which overrides the default `textarea` one.
This makes the "Edit as HTML" feature usable for people relying on screen readers.
This may be used in the future in the console, where we could remove the legacy
console input and serve the CodeMirror instance for everyone.
Differential Revision: https://phabricator.services.mozilla.com/D24930
Alexandre Poirot