Update paths after converting devextreme to monorepo (#1431)

Author: alexslavr

.github/workflows/tests.yml

@@ -46,12 +46,16 @@ jobs:
       run: npm i --no-audit --no-fund
 
     - name: Build devextreme repo
-      working-directory: ../devextreme
+      working-directory: ../devextreme/packages/devextreme
       run: npm run build-npm-devextreme
 
+    - name: Discover declarations
+      working-directory: ../devextreme/packages/devextreme
+      run: npm run discover-declarations
+
     - name: Install devextreme package
       continue-on-error: true
-      run: npm i --save-dev ../devextreme/artifacts/npm/devextreme --workspace=devextreme-angular --workspace=devextreme-angular-sandbox
+      run: npm i --save-dev ../devextreme/packages/devextreme/artifacts/npm/devextreme --workspace=devextreme-angular --workspace=devextreme-angular-sandbox
 
     - name: Run npm install
       run: npm i --no-audit --no-fund

package.json

@@ -16,7 +16,7 @@
     "test:dev": "npm run test:dev --ws --if-present",
     "pack": "npm run update-integration-meta && npm run pack --ws --if-present",
     "lint": "gulp lint",
-    "update-integration-meta": "dx-tools generate-ng-smd --artifacts ../devextreme/artifacts/internal-tools --output-path ./packages/devextreme-angular/metadata/NGMetaData.json"
+    "update-integration-meta": "dx-tools generate-ng-smd --artifacts ../devextreme/packages/devextreme/artifacts/internal-tools --output-path ./packages/devextreme-angular/metadata/NGMetaData.json"
   },
   "author": "Developer Express Inc.",
   "license": "MIT",