DialogFooter children width is unconstrained

[berryde]

Environment

• Package version(s): @blueprintjs/core 5.10.3
• Operating System: Windows
• Browser name and version: Google Chrome 125.0.6422.60

Code Sandbox

Link to a minimal repro: https://blueprintjs.com/docs/#core/components/dialog.dialog

Steps to reproduce

1. Inspect element on the dialog footer text in the docs example.
2. Replace the text with a longer message, causing the footer to overflow.

Actual behavior

Providing a sufficiently large child element, such as a long text message, causes the dialog footer to overflow.

Expected behavior

The children should be constrained by the width of the footer, and should not overflow the footer.

Possible solution

Add flex-shrink: 1 to bp5-dialog-footer-main-section as in the screenshot above.