Switch Heatmaps to be for each side respectively

The analysis and storage now contain two different heatmaps for the CT and T sides respectively.

However on the frontend I currently just have them all listed out with the side as a prefix, which is
not very useful and we should more change the data structure to essentially send the two heatmaps for
a player as a single data structure and then in the view display them side by side. However I am not
100% how to best achieve this

migrations/2024-09-28-132839_heatmap/up.sql

@@ -2,6 +2,7 @@
 CREATE TABLE IF NOT EXISTS demo_heatmaps (
   demo_id TEXT NOT NULL,
   steam_id TEXT NOT NULL,
+  team TEXT NOT NULL,
   data TEXT NOT NULL,
-  PRIMARY KEY (demo_id, steam_id)
+  PRIMARY KEY (demo_id, steam_id, team)
 );