refactor(file-browser): consolidate rename logic and prevent empty file names

[AuDevTist1C]

This PR refactors the file/folder rename control flow in fileBrowser.js to reduce code duplication and adds explicit non-empty input enforcement to the rename prompt.

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Changes

1. Enforce Non-Empty Rename Input

• Added required: true to the rename prompt options.
• While regex pattern matching was already handled via match: config.FILE_NAME_REGEX, adding required: true prevents submitting empty string values ("").

2. Refactor and Deduplicate renameFile Flow

• Consolidated the logic in renameFile(newname) to follow the DRY (Don't Repeat Yourself) principle.
• Before: The Termux branch (isTermuxUrl(url)) contained duplicate state updates (recents.removeFile, recents.addFile, editorManager.getFile, openFolder.renameItem, toast, and reload()) and exited early.
• After: Both Termux and standard filesystem paths resolve newUrl within an if / else block. Successful executions fall through to a single set of state updates and UI refreshes.

3. Unified Error Handling

• Wrapped standard filesystem operations (fs.renameTo(newname)) inside the master try...catch block to handle errors consistently alongside the Termux branch.

_{(PR name and description are AI generated (Gemini 3.6 Flash))}

[greptile-apps]

Greptile Summary

This PR consolidates the local and Termux rename flows while adding required-field validation to the rename prompt.

• Shares post-rename updates and error handling across filesystem paths.
• Constructs the Termux destination URL once before copying and deleting the original file.
• Adds required: true to the file-browser rename prompt.

Confidence Score: 4/5

The PR appears safe to merge, although Enter-key submission still bypasses the intended required-field feedback.

The filesystem rename refactor preserves the existing state-update paths, while the only accepted concern is a non-blocking prompt inconsistency that silently cancels an empty Enter-key submission.

Files Needing Attention: src/pages/fileBrowser/fileBrowser.js

Important Files Changed

Filename	Overview
src/pages/fileBrowser/fileBrowser.js	The rename-flow consolidation preserves existing backend behavior, but the added required validation is bypassed when the prompt is submitted with Enter.

_{Reviews (1): Last reviewed commit: "refactor(file-browser): deduplicate rena..." | Re-trigger Greptile}