Feat: Angular SSG (#249)

Description:
To improve load times, the application now serves pre-built HTML pages.

Features:
* Added Angular SSG for all main pages
* Removed Mountain Madness 2026 pages
* Update Angular to 21.2.10

Author: jbriones1

README.md

@@ -5,11 +5,11 @@ https://github.com/CSSS/csss-site-frontend/wiki
 ### Prereqs
 You will need:
 - `git`
-- `node` v24.14.1
-- `npm` v11.11.0
+- `node` v24.14
+- `npm` v11.11
 - Install the Angular CLI globally
 ```sh
-# use Angular v21.0.6
+# use Angular v21
 npm install -g @angular/cli
 ```
 

angular.json

@@ -33,7 +33,15 @@
               "includePaths": ["src/styles", "src/ui/csss-code"]
             },
             "styles": ["src/styles.scss"],
-            "scripts": []
+            "scripts": [],
+            "server": "src/main.server.ts",
+            "outputMode": "static",
+            "security": {
+              "allowedHosts": []
+            },
+            "ssr": {
+              "entry": "src/server.ts"
+            }
           },
           "configurations": {
             "production": {