test(e2e): match 'More' button exactly in staking specs

The token-details market data banner renders a "Learn more" link
(cspr.trade) when market data loads, and the substring selector
getByText('More') then resolves to two elements, failing the staking
specs with a strict mode violation.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: Comp0te

e2e-tests/popup/stakes/delegate.spec.ts

@@ -11,7 +11,7 @@ popup.describe('Popup UI: Delegation', () => {
         route.fulfill(RPC_RESPONSE.success)
       );
 
-      await popupPage.getByText('More').click();
+      await popupPage.getByText('More', { exact: true }).click();
 
       await popupPage.getByText('Delegate', { exact: true }).click();
 

e2e-tests/popup/stakes/redelagation.spec.ts

@@ -16,7 +16,7 @@ popup.describe('Popup UI: Redelegation', () => {
         route.fulfill(RPC_RESPONSE.success)
       );
 
-      await popupPage.getByText('More').click();
+      await popupPage.getByText('More', { exact: true }).click();
 
       await popupPage.getByText('Redelegate', { exact: true }).click();
 

e2e-tests/popup/stakes/undelegate.spec.ts

@@ -11,7 +11,7 @@ popup.describe('Popup UI: Undelegation', () => {
         route.fulfill(RPC_RESPONSE.success)
       );
 
-      await popupPage.getByText('More').click();
+      await popupPage.getByText('More', { exact: true }).click();
 
       await popupPage.getByText('Undelegate', { exact: true }).click();