ZIndex configuration through provide not working correctly

[jerrod-lankford]

Describe the bug

When attempting to configure the zIndex behavior for prime to keep toasts from displaying behind dialogs it does not seem to properly accept this configuration. Using configuration from docs: https://primereact.org/configuration/

Reproducer

https://codesandbox.io/p/sandbox/intelligent-haslett-jz2ddt

System Information

System:
    OS: macOS 26.5
    CPU: (10) arm64 Apple M4
    Memory: 71.41 MB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.19.4 - /Users/{{username}}/.nvm/versions/node/v20.19.4/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 10.8.2 - /Users/{{username}}/.nvm/versions/node/v20.19.4/bin/npm
  Browsers:
    Brave Browser: 147.1.89.132
    Chrome: 148.0.7778.216
    Firefox: 149.0.2
    Safari: 26.5
  npmPackages:
    primereact: 10.9.8 => 10.9.8
    react: 18.3.1 => 18.3.1

Steps to reproduce the behavior

1. Open reproducer
2. Notice the toasts are behind the blurred overlay of the dialog despite manual configuration of dialog and toast zIndex in the app file

Expected behavior

zIndex configuration respected, toasts above dialog