OFBIZ-12561 Remove duplicate payment find action

[toaditi]

Summary

• Backport the OFBIZ-12561 payment menu cleanup to the release24.09 branch.
• Remove the findPayment item from PaymentTabBar, which removes the extra Find action above the Find Payment screen while retaining the search form submit button.

Verification

• XML_CATALOG_FILES=framework/widget/dtd/widget-catalog.xml xmllint --noout --schema framework/widget/dtd/widget-menu.xsd applications/accounting/widget/AccountingMenus.xml
• XPath check: PaymentTabBar findPayment menu item count is 0
• XPath check: FindPayments form searchButton submit count is 1

Note

• The local Gradle hook could not complete in this environment because only JDK 11 is installed, while the branch requires Java 17 source compatibility (invalid source release: 17).