feat: encapsulate tab boundaries into a hook for managing pane dimensions

[barelyhuman]

Description

Adds a hook to abstract the setting and reading of the pane boundaries (tab request / response pane width / height

Fixes: #5665

Screen.Recording.2025-10-24.at.2.09.28.PM.mov

Contribution Checklist:

• The pull request only addresses one issue or adds one feature.
• The pull request does not introduce any breaking changes
• I have added screenshots or gifs to help explain the change if applicable.
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• Create an issue and link to the pull request.

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[Copilot]

Pull Request Overview

This PR introduces a custom hook useTabPaneBoundaries to centralize the management of request and response pane dimensions (width and height) across tabs, replacing scattered dimension management logic in the RequestTabPanel component.

Key Changes:

• Added a new updateRequestPaneTabHeight Redux action to complement the existing width update action
• Created useTabPaneBoundaries hook that encapsulates dimension state and setters for tab panes
• Refactored RequestTabPanel to use the new hook, removing local state management and cleanup logic

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
packages/bruno-app/src/providers/ReduxStore/slices/tabs.js	Added updateRequestPaneTabHeight action to store request pane height in tab state
packages/bruno-app/src/hooks/useTabPaneBoundaries/index.js	New hook providing unified interface for reading/writing pane boundaries with reset functionality
packages/bruno-app/src/components/RequestTabPanel/index.js	Refactored to use the new hook, removing duplicate logic and local state for pane dimensions

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