Update Angular and dependencies, add sponsor logos

Upgraded Angular packages and related dependencies to version 20.3.14 and updated several @inquirer and other dependencies. Added new sponsor logos to the assets folder and updated the About page to display them, including changes to constants, HTML, SCSS, TypeScript, and i18n files. Minor style and content adjustments were made to the About page.

package.json

@@ -10,26 +10,26 @@
   },
   "private": true,
   "dependencies": {
-    "@angular-devkit/build-angular": "~20.3.9",
-    "@angular/animations": "20.3.10",
+    "@angular-devkit/build-angular": "~20.3.12",
+    "@angular/animations": "20.3.14",
     "@angular/cdk": "20.2.11",
-    "@angular/common": "20.3.10",
-    "@angular/compiler": "20.3.10",
-    "@angular/core": "20.3.10",
-    "@angular/forms": "20.3.10",
+    "@angular/common": "~20.3.14",
+    "@angular/compiler": "20.3.14",
+    "@angular/core": "20.3.14",
+    "@angular/forms": "~20.3.14",
     "@angular/material": "20.2.11",
-    "@angular/platform-browser": "20.3.10",
-    "@angular/router": "20.3.10",
+    "@angular/platform-browser": "~20.3.14",
+    "@angular/router": "~20.3.14",
     "@ngx-translate/core": "~17.0.0",
     "@ngx-translate/http-loader": "~17.0.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0"
   },
   "devDependencies": {
-    "@angular/build": "20.3.9",
-    "@angular/cli": "20.3.9",
-    "@angular/compiler-cli": "20.3.10",
-    "@angular/platform-browser-dynamic": "20.3.10",
+    "@angular/build": "20.3.12",
+    "@angular/cli": "20.3.12",
+    "@angular/compiler-cli": "20.3.14",
+    "@angular/platform-browser-dynamic": "~20.3.14",
     "@types/jasmine": "~5.1.0",
     "jasmine-core": "~5.9.0",
     "karma": "~6.4.0",