add markdown support for text widgets

pdb-js/package.json

@@ -23,7 +23,9 @@
     "@angular/platform-browser": "^15.0.2",
     "@angular/platform-browser-dynamic": "^15.0.2",
     "@angular/router": "^15.0.2",
+    "marked": "^4.2.12",
     "moment": "^2.29.1",
+    "ngx-markdown": "^15.1.2",
     "rxjs": "~7.5.0",
     "rxjs-compat": "^6.6.7",
     "tslib": "^2.3.0",
@@ -34,6 +36,7 @@
     "@angular/cli": "^15.0.2",
     "@angular/compiler-cli": "^15.0.2",
     "@types/jasmine": "~3.10.0",
+    "@types/marked": "^4.0.8",
     "@types/node": "^12.11.1",
     "jasmine-core": "~3.10.0",
     "karma": "~6.3.0",
@@ -43,4 +46,4 @@
     "karma-jasmine-html-reporter": "~1.7.0",
     "typescript": "4.8"
   }
-}
+}