[Spaces] Edit Space sync folder

[tbsbdr]

Pre-submission Checks

• [X] I checked for similar issues, but could not find any. I also checked the closed issues. I could not contribute additional information to any existing issue.
• [X] I will take the time to fill in all the required fields. I know that the bug report may be dismissed otherwise due to lack of information.

Feature description

Userstory: As an expert user I want to sync a single Space with my external Photo-Backup-Harddrive so that I have all Photos in the Cloud and on my external Photo-Backup-Harddrive.

Proposed solution

Step 1

• Synced Spaces show Space image (Square, cropped) or Space placeholder icon like: remix icon "Function fill" or material icon "Grid view"
• Rename button "Add a Space" -> "Add or remove Space"
• Click on "Add or remove Space" opens Dialog

Step 2

• Button "Edit" appears only for selected Spaces
• Click on Edit opens Dialog "Edit sync folder"
• Headline: "Edit sync folder"
• Copytext: "Pick a local folder to synchronize the Space with." / optional Help-Link
• Click on "Save" navigates to previous dialog "Add or remove Space"

Step 3

• Edit the Sync folder connection.
• Please note, that a Headline was added for better visual "scannability"

Step 3

• Click on "Apply" to apply the changes

Step 4

• If the system is processing the applied changes, this should be indicated by a "working" icon (unsure if this is already the case)

Alternative solutions you considered

No response

Additional context

No response