Change notation, fix typos + grammar

ch/Background/HalfedgeDataStructure.tex

...ground/RelatedWork/GeometricMeshEmbeddingOptimization.tex

ch/Background/RelatedWork/IncrementalIsotropicRemeshing.tex

ch/Background/RelatedWork/Notation.tex

ch/Background/RelatedWork/PathEmbeddings.tex

ch/Background/RelatedWork/SurfaceToSurfaceMapping.tex

ch/Conclusion.tex

ch/EmbeddedIsotropicRemeshing.tex

ch/EmbeddedIsotropicRemeshing/Algorithm.tex

ch/EmbeddedIsotropicRemeshing/CollapseOrder.tex

ch/EmbeddedIsotropicRemeshing/ImplementationDetails.tex

ch/EmbeddedIsotropicRemeshing/Smoothing.tex

...eddedIsotropicRemeshing/Smoothing/ForestFireSmoothing.tex

...dIsotropicRemeshing/Smoothing/VertexDistanceSmoothing.tex

...dedIsotropicRemeshing/Smoothing/VertexWeightSmoothing.tex

ch/EmbeddingRepresentation.tex

ch/EmbeddingRepresentation/DataStructure.tex

ch/EmbeddingRepresentation/Initialization.tex

ch/EmbeddingRepresentation/Operations.tex

ch/Evaluation/Evaluation.tex