UI fixes to scoped software labels (#25094)

relates to #25062, 25063

quick fixes for UI issues with scoped software via labels feature.

- [x] Manual QA for all new/changed functionality

frontend/components/PlatformSelector/PlatformSelector.tsx

@@ -71,8 +71,9 @@ export const PlatformSelector = ({
         </Checkbox>
       </span>
       <div className="form-field__help-text">
-        To apply the profile to new hosts, you&apos;ll have to delete it and
-        upload a new profile.
+        Your policy will only run on the selected platform(s). Additionally, if
+        install software automation is enabled, it will run only on hosts
+        defined in the software scope.
       </div>
     </div>
   );

frontend/pages/DashboardPage/cards/ActivityFeed/components/SoftwareDetailsModal/_styles.scss

@@ -1,7 +1,9 @@
 .software-details-modal {
   &__modal-content {
     display: flex;
-    gap: $pad-xxlarge;
+    column-gap: $pad-xxlarge;
+    row-gap: $pad-xlarge;
+    flex-wrap: wrap;
   }
 
   .react-tooltip {