chore: update to angular v15

src/app/settings/settings.component.scss

@@ -14,7 +14,7 @@ button {
 
     :nth-child(2) {
         text-align: right;
-        
+
         mat-form-field {
             font-size: 14px;
         }
@@ -26,7 +26,7 @@ button {
 
     p {
         font-size: 0.9em;
-        opacity: .6;
+        opacity: 0.6;
         padding: 2px 0;
         margin: 0;
     }
@@ -38,4 +38,4 @@ button {
     button {
         margin: 0 10px;
     }
-}
+}