Cannot read property 'iconUrl' of undefined when showing running extensions

[rebornix]

Re #39568

• Install extension EditorConfig
• Reload Window
• Show Running Extension
• Open Developer Tools

TypeError: Cannot read property 'iconUrl' of undefined
    at Object.renderElement (runtimeExtensionsEditor.ts:304)
    at e.renderElement (listWidget.ts:635)
    at e.insertItemInDOM (listView.ts:295)
    at e._splice (listView.ts:196)
    at e.splice (listView.ts:139)
    at e.splice (listWidget.ts:34)
    at listWidget.ts:760
    at e.bufferEvents (event.ts:359)
    at n.e.splice (listWidget.ts:760)
    at i._updateExtensions (runtimeExtensionsEditor.ts:141)

I can always see the error on both Linux and macOS, however on Linux, I see an empty entry of running extension

[rebornix]

Besides, when this happens, I can no longer scroll the page, no matter how long the list is.

[ramya-rao-a]

Same for the Go extension

[isidorn]

I can also look into this one, assigning to November