feat(explore): Compute better suggestion for equation autocomplete

[Zylphrex]

This incorporates a way to look at the tokens up to this point decide what tokens we're expecting next.

Legal Boilerplate

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
8636	1	8635	3

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

Dashboards > Detail prebuilt dashboards assigns unique IDs to all widgets so grid keys are unique

Stack Traces | 1.33s run time

Error: Unable to find an element with the text: Default Widget 1. This could be because the text is broken up by multiple elements. In this case, you can provide a function for your text matcher to make your matcher more flexible.

Ignored nodes: comments, script, style
...
    at waitForWrapper (.../sentry/sentry/node_modules/@.../dom/dist/wait-for.js:163:27)
    at .../sentry/sentry/node_modules/@.../dom/dist/query-helpers.js:86:33
    at Object.<anonymous> (.../views/dashboards/detail.spec.tsx:191:48)
    at Promise.then.completed (.../sentry/sentry/node_modules/jest-circus/build/utils.js:298:28)
    at new Promise (<anonymous>)
    at callAsyncCircusFn (.../sentry/sentry/node_modules/jest-circus/build/utils.js:231:10)
    at _callCircusTest (.../sentry/sentry/node_modules/jest-circus/build/run.js:316:40)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at _runTest (.../sentry/sentry/node_modules/jest-circus/build/run.js:252:3)
    at _runTestsForDescribeBlock (.../sentry/sentry/node_modules/jest-circus/build/run.js:126:9)
    at _runTestsForDescribeBlock (.../sentry/sentry/node_modules/jest-circus/build/run.js:121:9)
    at _runTestsForDescribeBlock (.../sentry/sentry/node_modules/jest-circus/build/run.js:121:9)
    at run (.../sentry/sentry/node_modules/jest-circus/build/run.js:71:3)
    at runAndTransformResultsToJestFormat (.../sentry/sentry/node_modules/jest-circus/build/legacy-code-todo-rewrite/jestAdapterInit.js:122:21)
    at jestAdapter (.../sentry/sentry/node_modules/jest-circus/build/legacy-code-todo-rewrite/jestAdapter.js:79:19)
    at runTestInternal (.../sentry/sentry/node_modules/jest-runner/build/runTest.js:367:16)
    at runTest (.../sentry/sentry/node_modules/jest-runner/build/runTest.js:444:34)
    at Object.worker (.../sentry/sentry/node_modules/jest-runner/build/testWorker.js:106:12)

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