Add new icon shapes and filter for filtering icons on the layer (#1348)

## Description:

Add triangle shape for missile silos, square for sam, octagon for
defense posts, and add a filter in the topbar to highlight structures


![image](https://github.com/user-attachments/assets/d0986037-d4d7-41c6-b353-2a69b1eeb7c4)

![highlight](https://github.com/user-attachments/assets/0018e68a-31d4-478f-be57-56c3f71ee32a)


## 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

package-lock.json

@@ -49,6 +49,7 @@
         "nanoid": "^3.3.6",
         "obscenity": "^0.4.3",
         "pg": "^8.13.3",
+        "pixi-filters": "^6.1.3",
         "pixi.js": "^8.10.1",
         "prom-client": "^15.1.3",
         "protobufjs": "^7.3.2",
@@ -9371,6 +9372,12 @@
       "integrity": "sha512-40um9QqwHjRS92qnOaDpL7RmDK15NuZYo9HihiJRbYkMQZlWnuH8AdvbMy8/o6lgLmKbDUKa+OALCltHdbOTpQ==",
       "license": "MIT"
     },
+    "node_modules/@types/gradient-parser": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/@types/gradient-parser/-/gradient-parser-0.1.5.tgz",
+      "integrity": "sha512-r7K3NkJz3A95WkVVmjs0NcchhHstC2C/VIYNX4JC6tieviUNo774FFeOHjThr3Vw/WCeMP9kAT77MKbIRlO/4w==",
+      "license": "MIT"
+    },
     "node_modules/@types/hammerjs": {
       "version": "2.0.46",
       "resolved": "https://registry.npmjs.org/@types/hammerjs/-/hammerjs-2.0.46.tgz",
@@ -19609,6 +19616,18 @@
         "node": ">=4.0.0"
       }
     },
+    "node_modules/pixi-filters": {
+      "version": "6.1.3",
+      "resolved": "https://registry.npmjs.org/pixi-filters/-/pixi-filters-6.1.3.tgz",
+      "integrity": "sha512-bmdI2Ytz+z/NcADkjew2phKq300aQ9p9nVx9OfkMNuoYEl4gW99ZDNQZfsF834V/jj3CKTsIV4jxA+BI45UYOQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/gradient-parser": "^0.1.2"
+      },
+      "peerDependencies": {
+        "pixi.js": ">=8.0.0-0"
+      }
+    },
     "node_modules/pixi.js": {
       "version": "8.10.1",
       "resolved": "https://registry.npmjs.org/pixi.js/-/pixi.js-8.10.1.tgz",