[Chat][File Sharing] Added Missing Exports

[jpeng-ms]

What

to address failures like this:

Why

bug fix

How Tested

CI

Process & policy checklist

• [X] I have updated the project documentation to reflect my changes if necessary.
• [X] I have read the CONTRIBUTING documentation.

Is this a breaking change?

• [ ] This change causes current functionality to break.

[github-actions[bot]]

Storybook URL https://60c7ae6891f0e90039d7cd54-ypxyvmgwgd.chromatic.com/

[github-actions[bot]]

Calling bundle size is not changed.

• Current size: 4809372
• Base size: 4809372
• Diff size: 0

[github-actions[bot]]

CallWithChat bundle size is not changed.

• Current size: 6189161
• Base size: 6189161
• Diff size: 0

[github-actions[bot]]

Chat bundle size is not changed.

• Current size: 2108818
• Base size: 2108818
• Diff size: 0

[github-actions[bot]]

Storybook URL https://60c7ae6891f0e90039d7cd54-zjjqoggoak.chromatic.com/

[github-actions[bot]]

Storybook URL https://60c7ae6891f0e90039d7cd54-gixwkphmby.chromatic.com/

[github-actions[bot]]

Storybook URL https://60c7ae6891f0e90039d7cd54-irfkvcjjim.chromatic.com/

[github-actions[bot]]

@azure/communication-react jest test coverage for beta.

	Lines	Statements	Functions	Branches
Base	49643 / 79142 62.72%	49643 / 79142 62.72%	1019 / 2267 44.94%	2877 / 4714 61.03%
Current	49647 / 79142 62.73%	49647 / 79142 62.73%	1019 / 2267 44.94%	2892 / 4723 61.23%
Diff	4 / 0 0.01%	4 / 0 0.01%	0 / 0 0%	15 / 9 0.2%

[github-actions[bot]]

@azure/communication-react jest test coverage for stable.

	Lines	Statements	Functions	Branches
Base	25185 / 39127 64.36%	25185 / 39127 64.36%	675 / 1215 55.55%	1958 / 3116 62.83%
Current	25185 / 39127 64.36%	25185 / 39127 64.36%	675 / 1215 55.55%	1958 / 3116 62.83%
Diff	0 / 0 0%	0 / 0 0%	0 / 0 0%	0 / 0 0%

[github-actions[bot]]

Storybook URL https://60c7ae6891f0e90039d7cd54-dlbwbmbbnx.chromatic.com/