New icons (#1287)

## Description:

Add a new pixi layer for rendering structure icons
Add new sprites for structures

![image](https://github.com/user-attachments/assets/d5171b31-c83b-431a-a0f6-87b85b460a3f)

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:

Vivacious Box

---------

Co-authored-by: evanpelle <evanpelle@gmail.com>

src/client/styles.css

@@ -376,13 +376,13 @@ label.option-card:hover {
 }
 
 #helpModal .missile-silo-icon {
-  mask: url("../../resources/images/MissileSiloIconWhite.svg") no-repeat
-    center / cover;
+  mask: url("../../resources/non-commercial/svg/MissileSiloIconWhite.svg")
+    no-repeat center / cover;
 }
 
 #helpModal .sam-launcher-icon {
-  mask: url("../../resources/images/SamLauncherIconWhite.svg") no-repeat
-    center / cover;
+  mask: url("../../resources/non-commercial/svg/SamLauncherIconWhite.svg")
+    no-repeat center / cover;
 }
 
 #helpModal .atom-bomb-icon {