Update Group Management Button

The "✏️ Manage Group " mwc action button in the Groups plugin is updated to the "warning" class.  That changes the color from blue to yellow.  Easier to differentiate the action.

qortal-ui-plugins/plugins/core/group-management/group-management.src.js

@@ -2674,9 +2674,9 @@ class GroupManagement extends LitElement {
 
     renderManageButton(groupObj) {
         if (groupObj.owner === this.selectedAddress.address) {
-            return html`<mwc-button @click=${() => this.manageGroupOwner(groupObj)}><mwc-icon>create</mwc-icon>&nbsp;${translate("grouppage.gchange40")}</mwc-button>`
+            return html`<mwc-button class="warning" @click=${() => this.manageGroupOwner(groupObj)}><mwc-icon>create</mwc-icon>&nbsp;${translate("grouppage.gchange40")}</mwc-button>`
         } else if (groupObj.isAdmin === true) {
-            return html`<mwc-button @click=${() => this.manageGroupAdmin(groupObj)}><mwc-icon>create</mwc-icon>&nbsp;${translate("grouppage.gchange40")}</mwc-button>`
+            return html`<mwc-button class="warning" @click=${() => this.manageGroupAdmin(groupObj)}><mwc-icon>create</mwc-icon>&nbsp;${translate("grouppage.gchange40")}</mwc-button>`
         } else {
             return html`<mwc-button @click=${() => this.leaveGroup(groupObj)}><mwc-icon>exit_to_app</mwc-icon>&nbsp;${translate("grouppage.gchange50")}</mwc-button>`
         }