chore: refactoring fitgures directory

paper/src/chapters/04-results.tex

@@ -1,7 +1,7 @@
 \section{Results}
 \begin{figure}[ht]
     \centering
-    \input{chapters/figures/supra.tex}
+    \input{chapters/figures/supra/supra.tex}
     \caption{Evolution of price distributions over experiment steps. The heatmap illustrates the density of price offerings. This is an early baseline simulation which demonstrates supra-competitive price-setting in deep learning agents such as SAC as can be clearly seen by the high density at the highest available price.}
     \label{fig:supra_heatmap}
 \end{figure}