Updated groups header to allow only admin to access options

• Updated:
- groups header to allow only admin to access options

app/javascript/gabsocial/components/group_header.js

@@ -89,9 +89,11 @@ class GroupHeader extends ImmutablePureComponent {
     const coverSrcMissing = coverSrc.indexOf(PLACEHOLDER_MISSING_HEADER_SRC) > -1 || !coverSrc
     const title = !!group ? group.get('title') : undefined
     
+    let isAdmin = false
     let actionButtonTitle
     let actionButtonOptions = {}
     if (relationships) {
+      isAdmin = relationships.get('admin')
       const isMember = relationships.get('member')
       actionButtonTitle = intl.formatMessage(!isMember ? messages.join : messages.leave)
       if (isMember) {
@@ -137,6 +139,8 @@ class GroupHeader extends ImmutablePureComponent {
                     </Button>
                   }
                   
+                  {
+                    isAdmin &&
                     <Button
                       radiusSmall
                       color='primary'
@@ -146,6 +150,7 @@ class GroupHeader extends ImmutablePureComponent {
                       onClick={this.handleOnOpenGroupOptions}
                       buttonRef={this.setInfoBtn}
                     />
+                  }
                 </div>
 
                 <div className={[_s.default, _s.flexRow, _s.height100PC, _s.mt15, _s.pt10, _s.px10].join(' ')}>
@@ -186,6 +191,8 @@ class GroupHeader extends ImmutablePureComponent {
                       </Button>
                     }
 
+                    {
+                      isAdmin &&
                       <Button
                         radiusSmall
                         color='primary'
@@ -195,6 +202,7 @@ class GroupHeader extends ImmutablePureComponent {
                         onClick={this.handleOnOpenGroupOptions}
                         buttonRef={this.setInfoBtn}
                       />
+                    }
                   </div>
                 </div>
               </div>