Satisfy linter

res/css/structures/_BackdropPanel.scss

@@ -15,22 +15,22 @@ limitations under the License.
 */
 
 .mx_BackdropPanel {
-  position: absolute;
-  left: 0;
-  top: 0;
-  height: 100vh;
-  width: 100%;
-  overflow: hidden;
-
-  &:before {
-    content: ' ';
     position: absolute;
     left: 0;
     top: 0;
     height: 100vh;
     width: 100%;
-    background-color: rgba(255, 255, 255, .055);
-  }
+    overflow: hidden;
+
+    &::before {
+        content: " ";
+        position: absolute;
+        left: 0;
+        top: 0;
+        height: 100vh;
+        width: 100%;
+        background-color: rgba(255, 255, 255, 0.055);
+    }
 }
 
 .mx_BackdropPanel--canvas {
@@ -43,9 +43,9 @@ limitations under the License.
     overflow: hidden;
 
     &:nth-of-type(2n-1) {
-      opacity: 0.2;
+        opacity: 0.2;
     }
     &:nth-of-type(2n) {
-      opacity:0.1;
+        opacity: 0.1;
     }
 }

src/components/structures/LeftPanel.tsx

@@ -95,7 +95,8 @@ export default class LeftPanel extends React.Component<IProps, IState> {
         UIStore.instance.trackElementDimensions("LeftPanel", this.ref.current);
         UIStore.instance.trackElementDimensions("ListContainer", this.listContainerRef.current);
         if (this.groupFilterPanelContainer.current) {
-            UIStore.instance.trackElementDimensions("GroupFilterPanelContainer", this.groupFilterPanelContainer.current);
+            const componentName = "GroupFilterPanelContainer";
+            UIStore.instance.trackElementDimensions(componentName, this.groupFilterPanelContainer.current);
         }
         UIStore.instance.on("ListContainer", this.refreshStickyHeaders);
         // Using the passive option to not block the main thread

src/components/views/spaces/SpacePanel.tsx

@@ -14,7 +14,16 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React, { ComponentProps, Dispatch, ReactNode, SetStateAction, useEffect, useLayoutEffect, useRef, useState } from "react";
+import React, {
+    ComponentProps,
+    Dispatch,
+    ReactNode,
+    SetStateAction,
+    useEffect,
+    useLayoutEffect,
+    useRef,
+    useState,
+} from "react";
 import { DragDropContext, Draggable, Droppable } from "react-beautiful-dnd";
 import classNames from "classnames";
 import { Room } from "matrix-js-sdk/src/models/room";