fix: update Maeva Guerrier's profile image and details in the people section

Author: SimonR99

assets/images/people/maelle-mathieu.jpg

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+---
+name: Maëlle Mathieu
+role: msc
+title: Master's Student
+photo: maelle-mathieu.jpg
+short_bio: Master's student working on language-guided mission planning, markerless aerial localization, and semantic 3D world representations for autonomous manipulation.
+supervisor: Giovanni Beltrame
+tags: [Mission Planning, Aerial Robotics, World Models, Manipulation]
+email: maelle.mathieu@etud.polymtl.ca
+order: 1
+---
+
+Maëlle Mathieu is a Master's student in computer engineering at Polytechnique
+Montréal, supervised by Professor Giovanni Beltrame. She received her Bachelor's
+degree in aerospace engineering in May 2025. She is interested in autonomous
+robotics and space exploration.
+
+## Current Work
+
+- **Language-guided mission planning for autonomous aerial manipulation** —
+  developing systems that enable robots to interpret high-level objectives and
+  translate them into structured, adaptive task sequences, closing the loop
+  between natural language understanding and autonomous physical manipulation
+  under strict onboard compute constraints.
+- **Markerless precision localization for aerial robotic manipulation** —
+  designing multi-modal sensor fusion architectures that provide robust,
+  sub-centimeter pose estimation from a moving aerial platform in unstructured
+  environments, enabling precise autonomous manipulation without reliance on
+  controlled conditions or artificial landmarks.
+- **Semantic 3D world representations for autonomous manipulation** —
+  constructing rich, language-queryable maps of physical environments by fusing
+  geometric reconstruction with semantic reasoning, enabling robots to
+  autonomously identify, understand, and select objects for manipulation through
+  open-vocabulary perception directly onboard.
+
+## Contact
+
+Reach Maëlle at [maelle.mathieu@etud.polymtl.ca](mailto:maelle.mathieu@etud.polymtl.ca).