[Task] tools: promote Beta portlet to primary

Description

Promote the Tools portlet from Beta to primary once it has baked in production: drop the -beta suffix from the portlet id, the display name and the route, and add it to the default layout so it appears out of the box.

This is a separate ticket on purpose. While it ships as tools-beta, the portlet reaches only the admins who opted in through Add Portlet, and backing it out is a layout edit. Promotion is the point at which every install gets it, so it happens after product sign-off rather than inside the implementation PR.

Acceptance Criteria

• dotCMS/src/main/webapp/WEB-INF/portlet.xml — rename the tools-beta entry to tools, with <portlet-url>/tools</portlet-url> and display name Tools.
• dotCMS/src/main/webapp/WEB-INF/messages/Language.properties — drop com.dotcms.repackage.javax.portlet.title.tools-beta and add com.dotcms.repackage.javax.portlet.title.tools=Tools.
• core-web/apps/dotcms-ui/src/app/app.routes.ts — flip the route path from tools-beta to tools.
• dotCMS/src/test/java/com/dotmarketing/business/portal/SerializationHelperTest.java — update the tools-beta assertion in testFromXmlFile to pin tools.
• Any other test asserting portlet ids or portlet counts is updated.
• UpgradeTask — an existing install whose custom layout referenced tools-beta still renders a working portlet after the upgrade.
• The Tools portlet is added to the default layout so a fresh install shows it out of the box, under Settings.
• i18n keys in the portlet that carry beta in their value or their name are cleaned up.
• Product sign-off is recorded on this ticket before the swap PR merges.

Priority

Low — blocked on the Beta baking in production and on product sign-off.

Additional Context

The Roles & Tools portlet keeps its Tools tab, which owns granting a section to a role. Nothing about it changes here.

QA

• Fresh install — the default layout shows Tools under Settings; the portlet loads at /#/c/tools and every surface works.
• Upgraded install, Beta in a custom layout — an install that had tools-beta in a custom layout still renders a working Tools portlet after the upgrade, with no broken menu entry.
• Upgraded install, Beta never added — the navigation is unchanged except for the new Tools entry, and no existing section or tool moved.
• Tools (Beta) no longer appears anywhere in Add Portlet or in the navigation.
• Granting and revoking sections per role in Roles & Tools still behaves exactly as before.

Refs #37351