Add previews generating

package.json

@@ -11,6 +11,7 @@
     "colors": "^1.4.0",
     "core-js": "^3.6.5",
     "lottie-vuejs": "^0.3.7",
+    "ts-node": "^9.0.0",
     "vue": "^2.6.11",
     "vue-class-component": "^7.2.3",
     "vue-gallery": "^2.0.1",
@@ -27,7 +28,11 @@
     "@vue/cli-plugin-router": "~4.5.0",
     "@vue/cli-plugin-typescript": "~4.5.0",
     "@vue/cli-service": "~4.5.0",
+    "canvas": "^2.6.1",
+    "image-clipper": "^0.4.4",
+    "image-size": "^0.9.2",
     "reflect-metadata": "^0.1.13",
+    "rimraf": "^3.0.2",
     "typescript": "~3.9.3",
     "vue-template-compiler": "^2.6.11"
   }