Adjust the WARNING message in web ui for CARMA messenger to be larger (…

…#196)

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# PR Details
## Description
Adjust the WARNING message in web ui for CARMA messenger to be larger
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## Related Issue
#195
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## Motivation and Context
Freight integration testing
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## How Has This Been Tested?
NA
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## Types of changes

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- [x] Defect fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that cause existing functionality
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## Checklist:

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- [ ] I have added any new packages to the sonar-scanner.properties file
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[**CONTRIBUTING**](https://github.com/usdot-fhwa-stol/carma-platform/blob/develop/Contributing.md)
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- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.

carma-messenger-ui/website/widgets/emergencyResponse/widget.css

@@ -49,3 +49,7 @@
 #emergencyAlert{
     z-index: 999;
 }
+
+#emergencyAlertMsg{
+    font-size: larger;
+}

carma-messenger-ui/website/widgets/emergencyResponse/widget.js

@@ -189,7 +189,7 @@ setInterval(() => {
     }
     $("#emergencyAlert").removeClass("show");
     document.getElementById('audioAlert3').pause();
-}, 5000);
+}, 10000);
 
 //Create alert element
 var createAlertDiv = (message) => {