UX: remove old group directory template, CSS (#20528)

app/assets/javascripts/discourse/app/templates/mobile/group-index.hbs

@@ -1,63 +0,0 @@
-<section class="user-content">
-  <TextField
-    @value={{this.filterInput}}
-    @placeholderKey={{this.filterPlaceholder}}
-    @autocomplete="off"
-    @class="group-username-filter no-blur"
-  />
-
-  <div class="group-members-manage">
-    {{#if this.canManageGroup}}
-      <DButton
-        @icon="plus"
-        @label="groups.manage.add_members"
-        @class="group-members-add"
-        @action={{route-action "showAddMembersModal"}}
-      />
-    {{/if}}
-  </div>
-
-  {{#if this.hasMembers}}
-    <LoadMore
-      @selector=".group-members .user-info"
-      @action={{action "loadMore"}}
-    >
-      <div class="group-members">
-        {{#each this.model.members as |user|}}
-          <div class="group-member">
-            <UserInfo @user={{user}} @skipName={{this.skipName}}>
-              {{#if user.owner}}<strong class="group-owner-label">{{i18n
-                    "groups.owner"
-                  }}</strong>{{/if}}
-
-              <div class="group-member-info">
-                <label>{{i18n "last_post"}}</label>
-                <span class="text">{{bound-date user.last_posted_at}}</span>
-              </div>
-
-              <div class="group-member-info">
-                <label>{{i18n "last_seen"}}</label>
-                <span class="text">{{bound-date user.last_seen_at}}</span>
-              </div>
-
-              {{#if this.canManageGroup}}
-                <GroupMemberDropdown
-                  @member={{user}}
-                  @canAdminGroup={{this.model.can_admin_group}}
-                  @canEditGroup={{this.model.can_edit_group}}
-                  @onChange={{action "actOnGroup" user}}
-                />
-              {{/if}}
-            </UserInfo>
-          </div>
-        {{/each}}
-      </div>
-    </LoadMore>
-
-    <ConditionalLoadingSpinner @condition={{this.loading}} />
-  {{else}}
-    <br />
-
-    <div>{{i18n this.emptyMessageKey}}</div>
-  {{/if}}
-</section>

app/assets/stylesheets/mobile/group.scss

@@ -16,30 +16,8 @@
   position: relative;
 }
 
-.group-members {
-  .group-member {
-    border-top: 1px solid var(--primary-low);
-
-    .user-info {
-      margin: 0;
-      padding: 0.5em;
-      width: 98%;
-    }
-
-    .btn-group {
-      margin-top: 0;
-    }
-
-    .group-member-info {
-      color: var(--primary-medium);
-
-      label {
-        margin-bottom: 0;
-        font-weight: bold;
-        display: inline-block;
-      }
-    }
-  }
+.group-accept-deny-buttons {
+  justify-content: start;
 }
 
 .group-info {