[CI] Stabilize visual tests, remove appAction, and update pane buttons (#7033)

* Add a VISUAL_URL constant and remove all vestiges of hide inspector and tree

* hide timer and add concurrency

* turn off concurrency

* factor out old appAction

* Add expand button to panes

* remove old slow annotations

* fix fault

* update domcontentloaded

* missed refactor

* driveby: setTimeBounds private

* add comments to the percyCSS

* suggest MISSION_TIME

* more notes

* regen

* clean up test

* driveby: clean up order

* restructure

* add new suite now that i'ts hidden

* use mission time everywhere possible

* driveby

* rerun generatedata

* comments

* lintfix

e2e/tests/functional/plugins/imagery/exampleImagery.e2e.spec.js

@@ -233,7 +233,6 @@ test.describe('Example Imagery Object', () => {
   });
 
   test('Can use the reset button to reset the image @unstable', async ({ page }, testInfo) => {
-    test.slow(testInfo.project === 'chrome-beta', 'This test is slow in chrome-beta');
     // Get initial image dimensions
     const initialBoundingBox = await page.locator(backgroundImageSelector).boundingBox();