KNOX-3357: Upgrade Webshell UI frameworks/libraries

[hanicz]

KNOX-3357 - Upgrade WebShell UI libraries/frameworks

What changes were proposed in this pull request?

• @angular/* packages upgraded to ^21.0.5
• ng-terminal upgraded ^3.1.1 → ^6.6.0
• zone.js upgraded ~0.11.4 → ~0.15.1
• TypeScript upgraded ~4.4.4 → ~5.9.3
• Node types upgraded to ^24.5.2

How was this patch tested?

Tested locally

Added my mac user to the local LDAP instance and created the sudoers file according to
https://knox.apache.org/books/knox-2-1-0/user-guide.html#Webshell

    <property>
        <name>gateway.websocket.feature.enabled</name>
        <value>true</value>
    </property>

    <property>
        <name>gateway.webshell.feature.enabled</name>
        <value>true</value>
    </property>

Integration Tests

N/A

UI changes