Fix bug with element disconnection

[anthony-c-martin]

Noticed when testing with https://testing-library.com/docs/react-testing-library/intro/ - test cleanup was causing the following error:

@vscode-bicep-ui/deploy-pane:test: ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Uncaught Exception ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
@vscode-bicep-ui/deploy-pane:test: TypeError: Cannot read properties of undefined (reading 'unobserve')
@vscode-bicep-ui/deploy-pane:test:  ❯ VscodeTable.disconnectedCallback ../../node_modules/@vscode-elements/elements/src/vscode-table/vscode-table.ts:171:35
@vscode-bicep-ui/deploy-pane:test:  ❯ VscodeTable.invokeTheCallbackFunction ../../node_modules/jsdom/lib/jsdom/living/generated/Function.js:19:26
@vscode-bicep-ui/deploy-pane:test:  ❯ invokeCEReactions ../../node_modules/jsdom/lib/jsdom/living/helpers/custom-elements.js:190:31
@vscode-bicep-ui/deploy-pane:test:  ❯ ceReactionsPostSteps ../../node_modules/jsdom/lib/jsdom/living/helpers/custom-elements.js:54:3
@vscode-bicep-ui/deploy-pane:test:  ❯ HTMLDivElement.removeChild ../../node_modules/jsdom/lib/jsdom/living/generated/Node.js:474:9
@vscode-bicep-ui/deploy-pane:test:  ❯ removeChildFromContainer ../../node_modules/react-dom/cjs/react-dom.development.js:11105:15
@vscode-bicep-ui/deploy-pane:test:  ❯ commitDeletionEffectsOnFiber ../../node_modules/react-dom/cjs/react-dom.development.js:24065:15
@vscode-bicep-ui/deploy-pane:test:  ❯ recursivelyTraverseDeletionEffects ../../node_modules/react-dom/cjs/react-dom.development.js:24028:5
@vscode-bicep-ui/deploy-pane:test:  ❯ commitDeletionEffectsOnFiber ../../node_modules/react-dom/cjs/react-dom.development.js:24157:9
@vscode-bicep-ui/deploy-pane:test:  ❯ commitDeletionEffects ../../node_modules/react-dom/cjs/react-dom.development.js:24015:5
@vscode-bicep-ui/deploy-pane:test: 
@vscode-bicep-ui/deploy-pane:test: This error originated in "src/components/App.test.tsx" test file. It doesn't mean the error was thrown inside the file itself, but while it was running.
@vscode-bicep-ui/deploy-pane:test: The latest test that might've caused the error is "what-ifs a deployment". It might mean one of the following:
@vscode-bicep-ui/deploy-pane:test: - The error was thrown, while Vitest was running this test.
@vscode-bicep-ui/deploy-pane:test: - If the error occurred after the test had been completed, this was the last documented test before it was thrown.

[bendera]

Awesome, thanks!!

[anthony-c-martin]

@bendera thanks for the super speedy release!