fix(widget-builder): Only allow count(spans) in sort

[narsaynorath]

Take 2 because the last one didn't account for the sort by in tables and would try to calculate the timeseries sort options for a dataset without timeseries support (i.e. issues)

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
10278	1	10277	9

View the top 1 failed test(s) by shortest run time

EventSearch handles basic inputs for tags

Stack Traces | 5.1s run time

Error: thrown: "Exceeded timeout of 5000 ms for a test.
Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout."
    at .../issueDetails/streamline/eventSearch.spec.tsx:51:3
    at _dispatchDescribe (.../jest-circus/build/index.js:91:26)
    at describe (.../jest-circus/build/index.js:55:5)
    at Object.<anonymous> (.../issueDetails/streamline/eventSearch.spec.tsx:15:1)
    at Runtime._execModule (.../jest-runtime/build/index.js:1439:24)
    at Runtime._loadModule (.../jest-runtime/build/index.js:1022:12)
    at Runtime.requireModule (.../jest-runtime/build/index.js:882:12)
    at jestAdapter (.../build/legacy-code-todo-rewrite/jestAdapter.js:77:13)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at runTestInternal (.../jest-runner/build/runTest.js:367:16)
    at runTest (.../jest-runner/build/runTest.js:444:34)
    at Object.worker (.../jest-runner/build/testWorker.js:106:12)

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