Fix local participant's display name in together mode

[JamesBurnside]

What

Fix local participant's display name to say You in together mode

Why

Currently says Unnamed Participant

How Tested

before (Says Unnamed participant)	after (Says You)

[github-actions]

Storybook 8 URL https://60c7ae6891f0e90039d7cd54-njwmlukvis.chromatic.com/

[github-actions]

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

	Lines	Statements	Functions	Branches
Base	29659 / 47352 62.63%	29659 / 47352 62.63%	816 / 1493 54.65%	2420 / 3854 62.79%
Current	29660 / 47353 62.63%	29660 / 47353 62.63%	816 / 1493 54.65%	2428 / 3859 62.91%
Diff	1 / 1 0%	1 / 1 0%	0 / 0 0%	8 / 5 0.12%

[github-actions]

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

	Lines	Statements	Functions	Branches
Base	58391 / 94965 61.48%	58391 / 94965 61.48%	1187 / 2716 43.7%	3359 / 5761 58.3%
Current	58395 / 94972 61.48%	58395 / 94972 61.48%	1187 / 2716 43.7%	3358 / 5763 58.26%
Diff	4 / 7 0%	4 / 7 0%	0 / 0 0%	-1 / 2 -0.04%

[github-actions]

📦 CallWithChat bundle size

Bundle	Base Size (bytes)	Current Size (bytes)	Change	Delta (bytes)
build.bundle.js	7580095	7580259	⚠️ increased	164
398.bundle.js	12413574	12413574	➖ unchanged	0
399.bundle.js	362421	362421	➖ unchanged	0
450.bundle.js	4471	4471	➖ unchanged	0
82.bundle.js	28319	28319	➖ unchanged	0
91.bundle.js	4120	4120	➖ unchanged	0

Total change: +164 B ⚠️

[github-actions]

📦 Calling bundle size

Bundle	Base Size (bytes)	Current Size (bytes)	Change	Delta (bytes)
build.bundle.js	6604593	6604757	⚠️ increased	164
398.bundle.js	12413560	12413560	➖ unchanged	0

Total change: +164 B ⚠️

[github-actions]

📦 Chat bundle size

Bundle	Base Size (bytes)	Current Size (bytes)	Change	Delta (bytes)
build.bundle.js	1779776	1779776	➖ unchanged	0
110.bundle.js	365689	365689	➖ unchanged	0
450.bundle.js	4455	4455	➖ unchanged	0
82.bundle.js	28303	28303	➖ unchanged	0
91.bundle.js	4104	4104	➖ unchanged	0

Total change: +0 B ➖

[github-actions]

Storybook 8 URL https://60c7ae6891f0e90039d7cd54-boypwlraal.chromatic.com/