fix: remove setup screen on project id to make same behavior with thread

[urmauur]

Describe Your Changes

Issue

This pull request simplifies the ProjectPage component by removing the logic that checks for valid model providers and the related conditional rendering of the SetupScreen. It also makes minor formatting improvements to translation calls and component props for better readability.

Removed provider setup logic:

• Removed the import and usage of useModelProvider, as well as the conditional check for valid providers and the rendering of the SetupScreen. This means the page no longer blocks access if no valid model providers are configured. [1] [2] [3]

Formatting and readability improvements:

• Reformatted translation (t) calls and the ThreadList component props to improve code readability and maintain consistency. [1] [2]

Fixes Issues

• Closes bug: Inconsistent thread access behavior between Project and Projects views when no models available #6684
• Closes #

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

[Copilot]

Pull Request Overview

Removes the provider gating logic from ProjectPage so projects behave like threads even when no model providers are configured, plus small readability tweaks.

• Remove provider check/useModelProvider and SetupScreen rendering
• Reformat i18n calls and ThreadList props for readability

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[github-actions]

Barecheck - Code coverage report

Total: 30.43%

Your code coverage diff: 0.00% ▴

Uncovered files and lines

File	Lines
web-app/src/routes/project/$projectId.tsx	1-2, 4-6, 8-11, 13-18, 20-22, 24-28, 30-31, 34, 37-41, 43-54, 56, 58-63, 65-66, 68-74, 76-88, 90, 93-99, 101-116, 118-121, 123-128, 130-136, 138