build(webapi): update publish artifacts and switch to port 5001

Adjust published appsettings.json to listen on http://localhost:5001 and refresh
static web assets + DLL after rebuild.

RoslynBridge.WebApi/publish/RoslynBridge.WebApi.staticwebassets.endpoints.json

@@ -1 +1,5 @@
-{"Version":1,"ManifestType":"Publish","Endpoints":[]}
+{
+  "Version": 1,
+  "ManifestType": "Publish",
+  "Endpoints": []
+}

RoslynBridge.WebApi/publish/appsettings.json

@@ -26,7 +26,7 @@
   "Kestrel": {
     "Endpoints": {
       "Http": {
-        "Url": "http://localhost:5000"
+        "Url": "http://localhost:5001"
       }
     }
   }