Add Sarah Parigela photo and rebuild people page

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Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: jeremymanning

images/people/sarah_parigela.png

@@ -108,9 +108,9 @@ <h3>om shah | undergrad</h3>
                     <p>Om is a member of the class of 2026 from Morganton, NC. He is on the pre-med track, and has many different interests ranging from biology to computer science.</p>
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-                    <img src="images/people/placeholder.png" alt="sarah parigela">
+                    <img src="images/people/sarah_parigela.png" alt="sarah parigela">
                     <h3>sarah parigela | undergrad</h3>
-                    <p>Sarah is interested in cognitive science, psychology, and neuroscience. She is working on using EEG to track how people learn from online course videos.</p>
+                    <p>Sarah is a Cognitive Science and Biomedical Engineering double major interested in translating brain research into real-world diagnostics. When she doesn't have her nose in a book, she's working as an EMT or convincing high schoolers that science is cool.</p>
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             </div>