docs: disambiguation simplification for non-react solutions

[gavinbarron]

Closes #2055

PR Type

• Documentation content changes

Description of the changes

I worked out that we don't need the import helper for SPFx webparts that don't use the React wrapper as the browser will automatically attach behavior to existing tags in the DOM.

This PR updates the documentation, removes the unnecessary helper function and updates the sample webpart

PR checklist

• Project builds (yarn build) and changes have been tested in at least two supported browsers (Edge + non-Chromium based browser)
• All public APIs (classes, methods, etc) have been documented following the jsdoc syntax
• Stories have been added and existing stories have been tested
• Added appropriate documentation. Docs PR:

• License header has been added to all new source files (yarn setLicense)
• Contains NO breaking changes

[ghost]

Thank you for creating a Pull Request @gavinbarron.

This is a checklist for the PR reviewer(s) to complete before approving and merging this PR:

• I have verified a documentation PR has been linked and is approved (or not applicable)
• I have ran this PR locally and have tested the fix/feature
• I have verified that stories have been added to storybook (or not applicable)
• I have tested existing stories in storybook to verify no regression has occured
• I have tested the solution in at least two browsers (Edge + 1 non-Chromium based browser)

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
mgt-components.src.components.mgt-person	50%	42%	0	❌
mgt-components.src.components.mgt-theme-toggle	100%	100%	0	✔
mgt-components.src.components.sub-components.mgt-flyout	30%	13%	0	❌
mgt-components.src.components.sub-components.mgt-spinner	100%	100%	0	✔
mgt-components.src.graph	19%	8%	0	❌
mgt-components.src.styles	90%	57%	0	✔
mgt-components.src.utils	36%	4%	0	❌
mgt-element.src	42%	0%	0	❌
mgt-element.src.components	40%	0%	0	❌
mgt-element.src.mock	53%	45%	0	➖
mgt-element.src.providers	38%	22%	0	❌
mgt-element.src.utils	43%	24%	0	❌
providers.mgt-msal-provider.src	46%	38%	0	❌
Summary	37% (709 / 1904)	20% (228 / 1114)	0	❌