fix d.ts errors generated by api-extractor

[radium-v]

Current Behavior

The web-components.d.ts file generated by API Extractor contains errors, and I'm not really sure what caused them to appear:

Type '{ baseName: string; baseClass: TextArea; template: FoundationElementTemplate<ViewTemplate<TextArea, any>, FoundationElementDefinition>; styles: (context: any, definition: any) => ElementStyles; shadowOptions: { ...; }; }' does not satisfy the constraint 'FoundationElementDefinition'.
  Types of property 'baseClass' are incompatible.
    Type 'TextArea' is not assignable to type 'Constructable<{}>'.
      Type 'TextArea' provides no match for the signature 'new (...args: any[]): {}'.ts(2344)
Type '{ baseName: string; baseClass: TextArea; template: FoundationElementTemplate<ViewTemplate<TextArea, any>, FoundationElementDefinition>; styles: (context: any, definition: any) => ElementStyles; shadowOptions: { ...; }; }' does not satisfy the constraint 'FoundationElementDefinition'.
  Types of property 'baseClass' are incompatible.
    Type 'TextArea' is not assignable to type 'Constructable<{}>'.ts(2344)
Type '{ baseName: string; baseClass: TextField; template: FoundationElementTemplate<ViewTemplate<TextField, any>, TextFieldOptions>; styles: (context: any, definition: any) => ElementStyles; shadowOptions: { ...; }; }' does not satisfy the constraint 'FoundationElementDefinition'.
  Types of property 'baseClass' are incompatible.
    Type 'TextField' is not assignable to type 'Constructable<{}>'.
      Type 'TextField' provides no match for the signature 'new (...args: any[]): {}'.ts(2344)
Type '{ baseName: string; baseClass: TextField; template: FoundationElementTemplate<ViewTemplate<TextField, any>, TextFieldOptions>; styles: (context: any, definition: any) => ElementStyles; shadowOptions: { ...; }; }' does not satisfy the constraint 'FoundationElementDefinition'.
  Types of property 'baseClass' are incompatible.
    Type 'TextField' is not assignable to type 'Constructable<{}>'.ts(2344)

New Behavior

I cast the object passed to the compose() function for both TextArea and TextField as a FoundationElementDefinition, which is what it should default to. This is the most succinct solution I could find for these specific errors.

[codesandbox-ci]

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Sandbox	Source
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@fluentui/react-components 9 starter	Configuration

[fabricteam]

📊 Bundle size report

_{🤖 This report was generated against 1f83caa61c5bea877ec67667ef748aaaf50ad14b}

[size-auditor]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: 1f83caa61c5bea877ec67667ef748aaaf50ad14b (build)

[chrisdholt]

@radium-v do you want to open this beyond draft? Looks good to all of us :)