refactor: move excalidraw-app outside src (#6987)

* refactor: move excalidraw-app outside src

* move some tests to excal app and fix some

* fix tests

* fix

* port remaining tests

* fix

* update snap

* move tests inside test folder

* fix

* fix

src/tests/__snapshots__/regressionTests.test.tsx.snap

@@ -13089,126 +13089,6 @@ exports[`regression tests > pinch-to-zoom works > [end of test] number of elemen
 
 exports[`regression tests > pinch-to-zoom works > [end of test] number of renders 1`] = `7`;
 
-exports[`regression tests > rerenders UI on language change > [end of test] appState 1`] = `
-{
-  "activeEmbeddable": null,
-  "activeTool": {
-    "customType": null,
-    "lastActiveTool": null,
-    "locked": false,
-    "type": "rectangle",
-  },
-  "collaborators": Map {},
-  "contextMenu": null,
-  "currentChartType": "bar",
-  "currentItemBackgroundColor": "transparent",
-  "currentItemEndArrowhead": "arrow",
-  "currentItemFillStyle": "hachure",
-  "currentItemFontFamily": 1,
-  "currentItemFontSize": 20,
-  "currentItemOpacity": 100,
-  "currentItemRoughness": 1,
-  "currentItemRoundness": "round",
-  "currentItemStartArrowhead": null,
-  "currentItemStrokeColor": "#1e1e1e",
-  "currentItemStrokeStyle": "solid",
-  "currentItemStrokeWidth": 1,
-  "currentItemTextAlign": "left",
-  "cursorButton": "up",
-  "defaultSidebarDockedPreference": false,
-  "draggingElement": null,
-  "editingElement": null,
-  "editingFrame": null,
-  "editingGroupId": null,
-  "editingLinearElement": null,
-  "elementsToHighlight": null,
-  "errorMessage": null,
-  "exportBackground": true,
-  "exportEmbedScene": false,
-  "exportScale": 1,
-  "exportWithDarkMode": false,
-  "fileHandle": null,
-  "frameRendering": {
-    "clip": true,
-    "enabled": true,
-    "name": true,
-    "outline": true,
-  },
-  "frameToHighlight": null,
-  "gridSize": null,
-  "height": 768,
-  "isBindingEnabled": true,
-  "isLoading": false,
-  "isResizing": false,
-  "isRotating": false,
-  "lastPointerDownWith": "mouse",
-  "multiElement": null,
-  "name": "Untitled-201933152653",
-  "offsetLeft": 0,
-  "offsetTop": 0,
-  "openDialog": null,
-  "openMenu": "canvas",
-  "openPopup": null,
-  "openSidebar": null,
-  "pasteDialog": {
-    "data": null,
-    "shown": false,
-  },
-  "penDetected": false,
-  "penMode": false,
-  "pendingImageElementId": null,
-  "previousSelectedElementIds": {},
-  "resizingElement": null,
-  "scrollX": 0,
-  "scrollY": 0,
-  "scrolledOutside": false,
-  "selectedElementIds": {},
-  "selectedElementsAreBeingDragged": false,
-  "selectedGroupIds": {},
-  "selectedLinearElement": null,
-  "selectionElement": null,
-  "shouldCacheIgnoreZoom": false,
-  "showHyperlinkPopup": false,
-  "showStats": false,
-  "showWelcomeScreen": true,
-  "startBoundElement": null,
-  "suggestedBindings": [],
-  "theme": "light",
-  "toast": null,
-  "viewBackgroundColor": "#ffffff",
-  "viewModeEnabled": false,
-  "width": 1024,
-  "zenModeEnabled": false,
-  "zoom": {
-    "value": 1,
-  },
-}
-`;
-
-exports[`regression tests > rerenders UI on language change > [end of test] history 1`] = `
-{
-  "recording": false,
-  "redoStack": [],
-  "stateHistory": [
-    {
-      "appState": {
-        "editingGroupId": null,
-        "editingLinearElement": null,
-        "name": "Untitled-201933152653",
-        "selectedElementIds": {},
-        "selectedGroupIds": {},
-        "viewBackgroundColor": "#ffffff",
-      },
-      "elements": [],
-    },
-  ],
-}
-`;
-
-exports[`regression tests > rerenders UI on language change > [end of test] number of elements 1`] = `0`;
-
-exports[`regression tests > rerenders UI on language change > [end of test] number of renders 1`] = `5`;
-
 exports[`regression tests > shift click on selected element should deselect it on pointer up > [end of test] appState 1`] = `
 {
   "activeEmbeddable": null,