Fix file manager files not sorted alphabetically

[Copilot]

Overview

Short summary of what this PR does

• Added: ...
• Updated: ...
• Removed: ...
• Fixed: File manager now sorts files alphabetically (directories first, then files)

Changes Made

Files were displayed in filesystem order (ls -U) instead of alphabetically. Added sorting to filteredFiles in FileManager.tsx:

• Directories sorted before files/links
• Alphabetical via localeCompare with numeric: true (file2 before file10)
• Wrapped in useMemo for performance

const filteredFiles = useMemo(
  () =>
    files
      .filter((file) => file.name.toLowerCase().includes(searchQuery.toLowerCase()))
      .sort((a, b) => {
        if (a.type === "directory" && b.type !== "directory") return -1;
        if (a.type !== "directory" && b.type === "directory") return 1;
        return a.name.localeCompare(b.name, undefined, { numeric: true, sensitivity: "base" });
      }),
  [files, searchQuery],
);

Related Issues

Link any issues this PR addresses

Screenshots / Demos

Before: Files in filesystem order (matches ls -U output)

After: Directories first, all sorted A-Z with natural number ordering

Checklist

• Code follows project style guidelines
• Supports mobile and desktop UI/app (if applicable)
• I have read Contributing.md
• This is not a translation request. See docs

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[BUG] File manager files are not sorted alphabetically</issue_title>
<issue_description>### Title

Files listed are not in alphabetical order, making it confusing to find specific folders

Platform

Website - Firefox

Server Installation Method

Docker

Version

v1.11.0

Troubleshooting

• I have examined logs and tried to find the issue
• I have reviewed opened and closed issues
• I have tried restarting the application
• I have read Known Issues (Known Issues (Read Before Posting) Termix-SSH/Support#296)

The Problem

The files are not sorted in any particular order, I was able to reproduce the same ordering with ls -U

How to Reproduce

1. Create multiple files, specifically don't create them in alphabetical order
2. Execute ls -U
3. Check termix to find files in same order as ls -U but not alphabetical order

Additional Context

No response</issue_description>

<agent_instructions>Review this issue and develop a solution.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes [BUG] File manager files are not sorted alphabetically Termix-SSH/Support#443

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