test: fix flaky native send and transaction decoding test (#29362)

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## **Description**

The test dapp page loads and the element is visible but not enabled yet
and this causes sometimes for the test to click on the button too soon
and to fail. Added a new wait condition in the waitForSelector method to
wait until the element is enabled and then click on it.

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## **Related issues**

Fixes: #28485

## **Manual testing steps**

1. Go to this page...
2.
3.

## **Screenshots/Recordings**

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before and after of your change. -->

### **Before**

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### **After**

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Standards](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
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Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
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test/e2e/page-objects/pages/test-dapp.ts

@@ -238,10 +238,16 @@ class TestDapp {
   }
 
   async clickSimpleSendButton() {
+    await this.driver.waitForSelector(this.simpleSendButton, {
+      state: 'enabled',
+    });
     await this.driver.clickElement(this.simpleSendButton);
   }
 
   async clickERC721MintButton() {
+    await this.driver.waitForSelector(this.erc721MintButton, {
+      state: 'enabled',
+    });
     await this.driver.clickElement(this.erc721MintButton);
   }
 

test/e2e/webdriver/driver.js

@@ -355,7 +355,7 @@ class Driver {
     // bucket that can include the state attribute to wait for elements that
     // match the selector to be removed from the DOM.
     let element;
-    if (!['visible', 'detached'].includes(state)) {
+    if (!['visible', 'detached', 'enabled'].includes(state)) {
       throw new Error(`Provided state selector ${state} is not supported`);
     }
     if (state === 'visible') {
@@ -368,7 +368,13 @@ class Driver {
         until.stalenessOf(await this.findElement(rawLocator)),
         timeout,
       );
+    } else if (state === 'enabled') {
+      element = await this.driver.wait(
+        until.elementIsEnabled(await this.findElement(rawLocator)),
+        timeout,
+      );
     }
+
     return wrapElementWithAPI(element, this);
   }