refactor with Panel classes

package.json

@@ -107,7 +107,6 @@
   ],
   "dependencies": {
     "@babel/polyfill": "7.12.1",
-    "@knadh/dragmove": "^0.1.2",
     "@web/dev-server-rollup": "0.3.2",
     "canvg": "3.0.7",
     "core-js": "3.9.1",
@@ -115,7 +114,7 @@
     "jspdf": "2.3.1",
     "pathseg": "1.2.0",
     "regenerator-runtime": "0.13.7",
-    "rollup-plugin-polyfill-node": "^0.6.1",
+    "rollup-plugin-polyfill-node": "^0.6.2",
     "svg2pdf.js": "2.1.0"
   },
   "devDependencies": {
@@ -147,7 +146,7 @@
     "cypress-multi-reporters": "1.4.0",
     "cypress-plugin-snapshots": "1.4.4",
     "deparam": "git+https://github.com/brettz9/deparam.git#updates",
-    "eslint": "^7.21.0",
+    "eslint": "^7.22.0",
     "eslint-config-standard": "16.0.2",
     "eslint-plugin-array-func": "3.1.7",
     "eslint-plugin-chai-expect": "2.2.0",
@@ -172,7 +171,7 @@
     "imageoptim-cli": "3.0.2",
     "jamilih": "0.54.0",
     "jsdoc": "3.6.6",
-    "mocha": "8.3.1",
+    "mocha": "8.3.2",
     "mocha-badge-generator": "0.9.0",
     "mochawesome": "6.2.2",
     "mochawesome-merge": "4.2.0",
@@ -188,7 +187,7 @@
     "remark-lint-ordered-list-marker-value": "2.0.1",
     "requirejs": "2.3.6",
     "rimraf": "3.0.2",
-    "rollup": "2.41.0",
+    "rollup": "2.41.2",
     "rollup-plugin-copy": "3.4.0",
     "rollup-plugin-filesize": "9.1.1",
     "rollup-plugin-node-polyfills": "0.2.1",