Converted the createTooltip function to an arrow function.

Used destructuring in the map and filter callbacks to simplify the access to properties.
Removed the redundant return keyword in the map callback by using implicit return.

javascript/canvas-zoom.js

@@ -483,7 +483,7 @@ onUiLoaded(async () => {
       });
     }
 
-    function createTooltip() {
+    const createTooltip = () => {
       const toolTipElemnt = targetElement.querySelector(".image-container") || targetElement.querySelector("div[data-testid='image']");
 
       const tooltip = document.createElement("div");
@@ -510,37 +510,36 @@ onUiLoaded(async () => {
         { configKey: "canvas_zoom_hotkey_transparency", action: "Transparency mode" },
       ];
 
-      const hotkeys = hotkeysInfo.map((info) => {
-        const configValue = hotkeysConfig[info.configKey];
-
+      const hotkeys = hotkeysInfo.map(({ configKey, action, keySuffix, keyPrefix }) => {
+        const configValue = hotkeysConfig[configKey];
         let key = configValue.slice(-1);
 
-        if (info.keySuffix) {
-          key = `${configValue}${info.keySuffix}`;
+        if (keySuffix) {
+          key = `${configValue}${keySuffix}`;
         }
 
-        if (info.keyPrefix && info.keyPrefix !== "None + ") {
-          key = `${info.keyPrefix}${configValue[3]}`;
+        if (keyPrefix && keyPrefix !== "None + ") {
+          key = `${keyPrefix}${configValue[3]}`;
         }
 
         return {
           key,
-          action: info.action,
+          action,
           disabled: configValue === "disable",
         };
       });
 
       hotkeys
-        .filter(hotkey => !hotkey.disabled)
-        .forEach(hotkey => {
+        .filter(({ disabled }) => !disabled)
+        .forEach(({ key, action }) => {
           const p = document.createElement("p");
-          p.innerHTML = `<b>${hotkey.key}</b> - ${hotkey.action}`;
+          p.innerHTML = `<b>${key}</b> - ${action}`;
           tooltipContent.appendChild(p);
         });
 
       tooltip.append(info, tooltipContent);
       toolTipElemnt.appendChild(tooltip);
-    }
+    };
 
     /**
    * Function to create fullscreen and dropper buttons and attach them to the target element