Linting fixes for frontend following eslint package upgrade

frontend/src/Components/keyboardShortcuts.js

@@ -74,14 +74,14 @@ function keyboardShortcuts(WrappedComponent) {
     bindShortcut = (key, callback, options = {}) => {
       this._mousetrap.bind(key, callback);
       this._mousetrapBindings[key] = options;
-    }
+    };
 
     unbindShortcut = (key) => {
       if (this._mousetrap != null) {
         delete this._mousetrapBindings[key];
         this._mousetrap.unbind(key);
       }
-    }
+    };
 
     unbindAllShortcuts = () => {
       const keys = Object.keys(this._mousetrapBindings);
@@ -95,7 +95,7 @@ function keyboardShortcuts(WrappedComponent) {
       });
 
       this._mousetrapBindings = {};
-    }
+    };
 
     stopCallback = (event, element, combo) => {
       const binding = this._mousetrapBindings[combo];
@@ -110,7 +110,7 @@ function keyboardShortcuts(WrappedComponent) {
         element.tagName === 'TEXTAREA' ||
         (element.contentEditable && element.contentEditable === 'true')
       );
-    }
+    };
 
     //
     // Render