[BUG] Dropbox action "Move a File/Folder" does not work

**Describe the bug**
When I try to use the Dropbox action "Move a File/Folder" and fully set the "Path from" and "Path to" fields with custom expressions that I am sure of, I get an error: "Error in call to API function "files/move:2": request body: missing required field 'from_path'".

**To Reproduce**
Steps to reproduce the behavior:
1. Go to a new Workflow and make any trigger.
2. Add Dropbox action "Move a File/Folder".
3. Try to set up "Path from" with custom expressions with a path which you actually have. My case was: `/pipedream/receipts/2023-04-29 12.01.06 Pepito.png`.
4. Try to set up "Path to" with custom expressions with a path which you want to get. My case was: `/pipedream/done/2023-04-29 12.01.06 Pepito.png`.
5. Click Test.
6. See an error "files/move:2": request body: missing required field 'from_path'".

**Expected behavior**
I assume that after click "Test", my file would be move from "Path from" to "Path to" correctly.

**Screenshots**

My trigger is happened.


And then I try to test my action.


**Desktop (please complete the following information):**
- OS: MacOS Ventura 13.3.1
- Browser: Google Chrome
- Version 112.0.5615.137 (Official Build) (x86_64)