fix(log-viewer): keep a find match's panel up, and make a highlighted frame read on any theme

[lukecotter]

main is red. The web e2e times out after 7m46s on every run since certinia#1029 merged — see the failure on certinia#1042.

expect(locator).toHaveCount(expected) failed
Locator:  locator('.runtime-extensions-editor').locator('.monaco-list-row').filter({ hasText: 'Activating' })
Expected: 0
Received: 1
Timeout:  120000ms
  at waitForExtensionsActivated

Cause

certinia#1029 provisions Salesforce Services from a local unpacked copy when it finds one, and falls back to the gallery id when it does not. A CI runner has no local copy, so it always takes the fallback.

@vscode/test-web pushes extensionIds into additionalBuiltinExtensions as a gallery reference (workbench.js:135-139), so the browser resolves it from the publisher CDN — which sends no Access-Control-Allow-Origin to a localhost origin. Services therefore sits at Activating for good, and waitForExtensionsActivated waits out its full 120s, three times over with retries.

That fallback never worked; it was hidden. createWebConfig passes --disable-web-security, which allowed the cross-origin fetch. The same PR dropped that flag so the suite could see CORS and CSP faults — which is exactly what it then saw, on a fault that was already there.

Fix

Provision Services when a local unpacked copy exists, and otherwise not at all.

Nothing is lost. No spec needs Services today: initServices() is called lazily from org commands, and no spec exercises one. The gallery route cannot work from a localhost origin whatever we do, so keeping it as a "fallback" only buys a guaranteed 120s hang.

Verified

Forced the CI condition locally by making findServicesExtension() return nothing, and ran the suite on the merged code and on this fix:

	result
merged code, no local copy	fails — same locator, same 120s timeout
this fix, no local copy	passes, 9.2s
this fix, local copy present	passes, 11.4s

tsc -b 0, eslint 0 errors, prettier clean.

[lukecotter]

Moved to certinia#1059.