Bump @eslint/js from 9.38.0 to 10.0.1 (#1721)

* Bump @eslint/js from 9.38.0 to 10.0.1

Bumps [@eslint/js](https://github.com/eslint/eslint/tree/HEAD/packages/js) from 9.38.0 to 10.0.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Commits](https://github.com/eslint/eslint/commits/v10.0.1/packages/js)

---
updated-dependencies:
- dependency-name: "@eslint/js"
  dependency-version: 10.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* bump eslint to 10 and fix new no-useless-assignment findings

* bump eslint-plugin-jest to 29 for eslint 10 peer support

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Patrick Kettner <patrickkettner@gmail.com>

Author: dependabot[bot]

api-samples/action/demo/index.js

@@ -234,8 +234,7 @@ document
     chrome.action.setBadgeText({ text: '' });
 
     // Randomly pick a new icon
-    let index = lastIconIndex;
-    index = Math.floor(Math.random() * EMOJI.length);
+    let index = Math.floor(Math.random() * EMOJI.length);
     if (index === lastIconIndex) {
       // Dupe detected! Increment the index & modulo to make sure we don't go out of bounds
       index = (index + 1) % EMOJI.length;

api-samples/cookies/cookie-clearer/popup.js

@@ -53,7 +53,7 @@ function stringToUrl(input) {
 }
 
 async function deleteDomainCookies(domain) {
-  let cookiesDeleted = 0;
+  let cookiesDeleted;
   try {
     const cookies = await chrome.cookies.getAll({ domain });
 

api-samples/default_command_override/background.js

@@ -11,7 +11,7 @@ chrome.commands.onCommand.addListener(async (command) => {
     return tab.active;
   });
   const lastTab = tabs.length - 1;
-  let newIndex = -1;
+  let newIndex;
   if (command === 'flip-tabs-forward') {
     newIndex = activeIndex === lastTab ? 0 : activeIndex + 1;
   }

api-samples/power/background.js

@@ -38,8 +38,8 @@ function loadSavedState(callback) {
  * @param {string} newState New {StateEnum} to use.
  */
 function setState(newState) {
-  let imagePrefix = 'night';
-  let title = '';
+  let imagePrefix;
+  let title;
 
   switch (newState) {
     case StateEnum.DISABLED: