Update about page description - Refined lab description text for clarity and consistency

Author: KamalanathanN

_pages/about.md

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         <h4> About </h4>
-        The Drexel Zhou Lab develops algorithms to advance the robustness, reliability, and scalability of robotics and multi-robot systems. Our research integrates robotics, algorithm design, and foundation models, and is driven by real-world challenges in environmental exploration, search and rescue, precision agriculture, urban mobility and robotic manipulation. 
+        The Drexel Zhou Lab aims to advance the robustness, reliability, and scalability of robotics and multi-robot systems. Our research integrates robotics and foundation models, and is driven by real-world challenges in environmental monitoring, disaster response, precision agriculture, urban mobility, and robotic manipulation. 
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