fix: Remove confusing detail from E020 message

Signed-off-by: Marcel Klehr <[email protected]>

Author: marcelklehr

_locales/en/messages.json

@@ -57,7 +57,7 @@
     "message": "E019: HTTP status {0}. Failed {1} request. Check your server configuration and log."
   },
   "Error020": {
-    "message": "E020: Could not parse server response. Is the bookmarks app installed on your server?"
+    "message": "E020: Could not parse server response."
   },
   "Error021": {
     "message": "E021: Inconsistent server state. Folder is present in childorder list but not in folder tree"

src/errors/Error.ts

@@ -160,7 +160,7 @@ export class HttpError extends FloccusError {
 export class ParseResponseError extends FloccusError {
   public response: string
   constructor(response: string) {
-    super('E020: Could not parse server response. Is the bookmarks app installed on your server?')
+    super('E020: Could not parse server response.')
     this.code = 20
     this.response = response
     Object.setPrototypeOf(this, ParseResponseError.prototype)