[Bug] Instrumentation view does not update when probes are inserted

[andrewazores]

See cryostatio/test-applications#43
Using this sample application and a JMC Agent probe template like the following:

<jfragent>
    <config>
        <classprefix>__JFREvent</classprefix>
        <allowtostring>false</allowtostring>
        <allowconverter>false</allowconverter>
    </config>
    <events>
        <event id="io.cryostat.test">
            <label>Quarkus Test Event</label>
            <class>java.lang.Runnable</class>
            <stacktrace>true</stacktrace>
            <rethrow>true</rethrow>
            <location>WRAP</location>
            <method>
                <name>run</name>
                <descriptor>()V</descriptor>
            </method>
        </event>
    </events>
</jfragent>

At the Instrumentation view, this template can be successfully uploaded. With the correct sample application selected this probe can be inserted and a notification appears, but the view state does not update and so the Live Configuration view does not reflect the new changes. Navigating away from Instrumentation and back, or refreshing the browser tab, causes the view to refresh and update its state as expected.

When removing probes from the target the view updates and a success notification appears, but the notification says the probes were removed from undefined target.

[andrewazores]

cryostatio/cryostat-web#1999