Remove period after instructor's first name in course info modal

[r-weng]

Proposed Changes

This pull request removes the period after an instructor's first name in the course info modal, which is likely a holdover from when only the instructor's first initial was displayed.

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Type of Change

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Type	Applies?
🚨 Breaking change (fix or feature that would cause existing functionality to change)
✨ New feature (non-breaking change that adds functionality)
🐛 Bug fix (non-breaking change that fixes an issue)	X
🎨 User interface change (change to user interface; provide screenshots)	X
♻️ Refactoring (internal change to codebase, without changing functionality)
🚦 Test update (change that only adds or modifies tests)
📦 Dependency update (change that updates a dependency)
🔧 Internal (change that only affects developers or continuous integration)

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[coveralls]

Coverage Report for CI Build 13

Coverage remained the same at 58.998%

Details

• Coverage remained the same as the base build.
• Patch coverage: 1 of 1 lines across 1 file are fully covered (100%).
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	3965
Covered Lines:	2405
Line Coverage:	60.66%
Relevant Branches:	964
Covered Branches:	503
Branch Coverage:	52.18%
Branches in Coverage %:	Yes
Coverage Strength:	164.02 hits per line

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💛 - Coveralls

[david-yz-liu]

Nice work, @r-weng!