Fix: Resource search no longer highlights current location

[Copilot]

Summary

Fixes #15551

Resource Type Search dialog (Ctrl+K) was incorrectly highlighting the current location. The search dialog is for navigation, not for showing current state.

Occurred changes and/or fixed issues

• Added highlightRoute prop to Type.vue and Group.vue components
• SearchDialog.vue now passes highlightRoute="false" to disable highlighting
• Visual classes, TabTitle, and aria-current all respect the new prop

Technical notes summary

New highlightRoute prop (default: true) controls:

• router-link-active / router-link-exact-active classes
• group-highlight / active classes on groups
• TabTitle component rendering
• aria-current="page" attribute

Side navigation behavior unchanged (default true). Only search dialog explicitly disables.

Areas or cases that should be tested

1. Open Resource Type Search (Ctrl+K) - current location should NOT be highlighted
2. Side navigation - current location should still be highlighted
3. Navigate via search dialog - verify navigation works correctly
4. Test in both light and dark mode

Local testing: Chrome

Areas which could experience regressions

• Side navigation highlighting
• Group expansion/collapse behavior
• Keyboard navigation in search dialog

Screenshot/Video

Before (left) vs After (right):

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes
• The PR has been reviewed in terms of Accessibility
• The PR has considered, and if applicable tested with, the three Global Roles Admin, Standard User and User Base

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Original prompt

---

This section details on the original issue you should resolve

<issue_title>Resource search highlights the current location</issue_title>
<issue_description><!--------- For bugs and general issues --------->
Setup

• Rancher version: Rancher Head
• Rancher UI Extensions: NA
• Browser type & version: Firefox & Chrome

Describe the bug

Resource search (uses same component i think as side nav, or at least same input) highlights the current location

Originally posted by @richard-cox in #15256 (review)

To Reproduce

1. Navigate to local cluster
2. Open Resource Type Search (ctrl+k)

Result

Expected Result

Screenshots

Additional context

See comment:

#15256 (review)
</issue_description>

Comments on the Issue (you are @copilot in this section)

@rak-phillip This is existing behavior and unrelated to the themes change.

• Fixes Resource search highlights the current location #15551

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[nwmac]

LGTM