`foam.graph.titleMaxLength` does not apply to graph placeholders

Describe the bug

Placeholders in Foam's graph are not truncated by the setting foam.graph.titleMaxLength.

Small Reproducible Example

No response

Steps to Reproduce the Bug or Issue

1. Set "foam.graph.titleMaxLength": 4 (extreme example for illustration purposes).
2. Re-open the graph and filter by Placeholders only to see the result.

Expected behavior

In my case, placeholder labels are very long (I'm seeing a few nodes which are full paths to HTML files). For placeholders, truncating from right to left (as is done for notes) would make these node labels identical, which isn't so useful. When a placeholder is a full path, truncate from the middle instead: /F:/Direct…-file.html? I'm not sure why it's displayed as a full path to begin with (I'm new to Foam). Perhaps just the file name is sufficient, similar to notes without a note title, then right to left truncation would still often provide unique enough labels.

Screenshots or Videos

No response

Operating System Version

Windows 11

Visual Studio Code Version

VSCodium 1.77.3

Additional context

No response