Save button appears when adding only whitespace to profile fields

Description:

When editing profile fields in the Account Settings, adding only whitespace (spaces, tabs) to any text field triggers the "Save Changes" button to appear, even though no meaningful content has changed.

Steps to reproduce:

1. Go to 'Account Settings' → 'Profile'
2. Click on the Name field (or any text field like Username, Nickname, Bio, Status Message)
3. Add a few spaces at the end or beginning of the existing value
4. Observe the "Save Changes" button appears

Expected behavior:

The "Save Changes" button should only appear when there are actual content changes. Whitespace-only changes (leading/trailing spaces) should be ignored since they get trimmed on save anyway.

Actual behavior:

The "Save Changes" button appears immediately when adding spaces, creating a false impression that there are changes to save. Clicking save doesn't actually change anything since the values are trimmed server-side.

Client Setup Information

• Desktop App or Browser Version: Any
• Operating System: Any

https://github.com/user-attachments/assets/2f8fd8ed-a023-4513-ad49-467853321c04

Start at the Account Settings → Profile form implementation and inspect the existing logic that determines when the "Save Changes" button appears. Reproduce the issue with leading and trailing whitespace, then verify that whitespace-only edits keep the button hidden while meaningful content changes still show it.