room-details: Rename invite-search-results class

Since it is not only used in the invite subpage.

data/resources/stylesheet/_room_details.scss

@@ -2,7 +2,6 @@
 
 @use 'vendor';
 
-// Visual media history viewer
 visual-media-history-viewer {
   background: black;
   color: white;
@@ -48,7 +47,6 @@ file-history-viewer, audio-history-viewer {
   }
 }
 
-// Room details
 .room-details listview {
 	background: transparent;
 }
@@ -109,3 +107,11 @@ permissions-member-row {
     background-color: vendor.$active_color;
   }
 }
+
+.user-search-results {
+	padding: 12px 0px;
+
+  > row {
+    border-radius: vendor.$menu_radius;
+  }
+}

data/resources/stylesheet/_session_view.scss

@@ -199,14 +199,6 @@ sidebar {
   font-size: 1.6em;
 }
 
-.invite-search-results {
-	padding: 12px 0px;
-
-  > row {
-    border-radius: vendor.$menu_radius;
-  }
-}
-
 // Event details dialog
 .event-details-dialog .sourceview {
   font-family: monospace;

src/session/view/content/room_details/invite_subpage/mod.ui

@@ -107,7 +107,7 @@
                               </object>
                             </property>
                             <style>
-                              <class name="invite-search-results"/>
+                              <class name="user-search-results"/>
                             </style>
                           </object>
                         </property>

src/session/view/content/room_details/permissions/add_members_subpage.ui

@@ -80,7 +80,7 @@
                             <property name="single-click-activate">True</property>
                             <property name="tab-behavior">item</property>
                             <style>
-                              <class name="invite-search-results"/>
+                              <class name="user-search-results"/>
                             </style>
                           </object>
                         </property>