MM-56630 Scroll Fix of center panel (#30144)

* pageup/pagedown button scroll for center post-list

* revert package.json

* changing id, using ? and returning in keyHandler

* added e2e test for pageup/pagedown scroll

* Fix dynamic-virtualized-list not being in lockfile and update path

Moving the package under the MM namespace wasn't necessary, but it stops
some warnings from NPM.

* Move E2E test from Cypress to Playwright

Cypress's cy.type doesn't seem to properly trigger browser functions
because it doesn't seem to use native keyboard events. A newer version
of Cypress has a new cy.press method which is supposed to use native
keyboard events, but it also only supports the tab key currently, so it
wouldn't be useful here.

* Fix new test on iPad

* Add page up/down support to RHS and Threads view

* Update type definitions for dynamic-virtualized-list

---------

Co-authored-by: Harrison Healey <harrisonmhealey@gmail.com>

webapp/package-lock.json

@@ -67,6 +67,7 @@
         "@mattermost/client": "*",
         "@mattermost/compass-components": "^0.2.12",
         "@mattermost/desktop-api": "5.10.0-2",
+        "@mattermost/dynamic-virtualized-list": "github:mattermost/dynamic-virtualized-list#08dde0c34a12d0384740db27d55e398d139d7a51",
         "@mattermost/types": "*",
         "@mui/base": "5.0.0-alpha.127",
         "@mui/material": "5.11.16",
@@ -87,7 +88,6 @@
         "crypto-browserify": "3.12.0",
         "css-vars-ponyfill": "2.4.8",
         "date-fns": "2.29.3",
-        "dynamic-virtualized-list": "github:mattermost/dynamic-virtualized-list#3fe918b41de4cb08dbf43f1207bb58827b38e833",
         "emoji-regex": "10.2.1",
         "exif2css": "1.3.0",
         "fast-deep-equal": "3.1.3",
@@ -335,27 +335,6 @@
         "node": ">=12"
       }
     },
-    "channels/node_modules/dynamic-virtualized-list": {
-      "version": "1.0.0-beta",
-      "resolved": "git+ssh://git@github.com/mattermost/dynamic-virtualized-list.git#3fe918b41de4cb08dbf43f1207bb58827b38e833",
-      "integrity": "sha512-dXhFLX7i5VZahMCPNr+i1SX+KW+/kAxYfOyYLFhKMTJW/aMS9Yrv5kbeIqoGMSMOG5M82N+ZFiVn8jGingkO5Q==",
-      "dependencies": {
-        "@babel/runtime": "^7.0.0",
-        "memoize-one": "^3.1.1"
-      },
-      "engines": {
-        "node": ">8.0.0"
-      },
-      "peerDependencies": {
-        "react": "^17.0.2",
-        "react-dom": "^17.0.2"
-      }
-    },
-    "channels/node_modules/dynamic-virtualized-list/node_modules/memoize-one": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/memoize-one/-/memoize-one-3.1.1.tgz",
-      "integrity": "sha512-YqVh744GsMlZu6xkhGslPSqSurOv6P+kLN2J3ysBZfagLcL5FdRK/0UpgLoL8hwjjEvvAVkjJZyFP+1T6p1vgA=="
-    },
     "channels/node_modules/enzyme-adapter-react-17-updated": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/enzyme-adapter-react-17-updated/-/enzyme-adapter-react-17-updated-1.0.2.tgz",
@@ -5287,6 +5266,29 @@
         }
       }
     },
+    "node_modules/@mattermost/dynamic-virtualized-list": {
+      "name": "dynamic-virtualized-list",
+      "version": "1.0.0-beta",
+      "resolved": "git+ssh://git@github.com/mattermost/dynamic-virtualized-list.git#08dde0c34a12d0384740db27d55e398d139d7a51",
+      "integrity": "sha512-uz8U9ufO7HvY9MMa/aoiyqiLEFqyHH67PM0sTVqdX9ooQ9ZPwNx4H4hudXgL9OKfqFbRTciOFfL5tCODUPdGcA==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.0.0",
+        "memoize-one": "^3.1.1"
+      },
+      "engines": {
+        "node": ">8.0.0"
+      },
+      "peerDependencies": {
+        "react": "^17.0.2",
+        "react-dom": "^17.0.2"
+      }
+    },
+    "node_modules/@mattermost/dynamic-virtualized-list/node_modules/memoize-one": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/memoize-one/-/memoize-one-3.1.1.tgz",
+      "integrity": "sha512-YqVh744GsMlZu6xkhGslPSqSurOv6P+kLN2J3ysBZfagLcL5FdRK/0UpgLoL8hwjjEvvAVkjJZyFP+1T6p1vgA=="
+    },
     "node_modules/@mattermost/eslint-plugin": {
       "resolved": "platform/eslint-plugin",
       "link": true