feat: add footer visibility toggle with localStorage persistence

[NeerajPise]

This PR implements a user-controlled footer visibility toggle system, allowing users to show/hide the footer. The visibility state persists across page reloads using localStorage.
This solves #493

Functional testing -

• Footer toggles on/off when clicking chevron buttons
• Footer state persists after page reload
• Footer state persists across navigation between routes
• Default state: visible on homepage, respects localStorage on other pages
• Toggle works in both loading and loaded footer states

Theme Testing -

• Buttons visible in dark mode
• Buttons visible in light mode

Visual Testing -

• Up button visible and centered when footer is hidden
• Down button visible and centered when footer is shown
• Buttons are bold and easily clickable
• Smooth animations on show/hide transitions

Demo video -

Screen.Recording.2025-11-20.at.9.35.00.PM.mp4

[anirudTT]

@NeerajPise : could you resolve the conflicts , and I can get started reviewing this PR

[Copilot]

Pull request overview

This PR adds a user-controlled footer visibility toggle feature with localStorage persistence, enabling users to show or hide the footer component. The visibility state is remembered across page reloads and navigation. The implementation replaces the previous deployment-based footer visibility logic with a more flexible user-controlled approach.

Changes:

• Introduced a new FooterVisibilityContext with provider and custom hook for state management
• Added chevron toggle buttons (up/down) to the Footer component for showing/hiding functionality
• Removed the deployment-based footer conditional rendering from MainLayout
• Integrated the FooterVisibilityProvider into the App component hierarchy
• Applied formatting fixes (removed trailing spaces in bug report template, changed let to const)

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
app/frontend/src/contexts/FooterVisibilityContext.ts	Defines the FooterVisibilityContext type and creates the context
app/frontend/src/providers/FooterVisibilityContext.tsx	Implements the provider with localStorage persistence and default visibility logic
app/frontend/src/hooks/useFooterVisibility.ts	Custom hook for consuming the FooterVisibilityContext with error handling
app/frontend/src/App.tsx	Wraps the app in FooterVisibilityProvider to enable context throughout the app
app/frontend/src/layouts/MainLayout.tsx	Removes deployment-based footer hiding logic, always renders Footer component
app/frontend/src/components/Footer.tsx	Adds toggle buttons, AnimatePresence wrapper, and visibility state handling

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[NeerajPise]

@anirudTT I'll resolve the conflicts and update the PR after checking Copilot's suggested fixes soon

[NeerajPise]

@anirudTT Fixed the conflicts and integrated Copilot's suggestions after a review

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

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