feat: better design for login page

Author: d4rpx1

frontend/angular.json

@@ -31,7 +31,6 @@
               "src/assets"
             ],
             "styles": [
-              "./node_modules/@angular/material/prebuilt-themes/pink-bluegrey.css",
               "src/styles.sass"
             ],
             "scripts": []
@@ -104,7 +103,6 @@
               "src/assets"
             ],
             "styles": [
-              "./node_modules/@angular/material/prebuilt-themes/pink-bluegrey.css",
               "src/styles.sass"
             ],
             "scripts": []