fix: hide hamburger menu on desktop view

[Ramprasadlondhe2005]

What does this PR do?

This PR fixes multiple UI issues related to navigation and social icons.

Fixes

• Fixes Hamburger menu should be hidden on desktop view #904: Hides hamburger menu icons on desktop/laptop screens (≥1024px)
• Fixes Update Twitter icons to official X logo across fossasia.org website #908: Updates Twitter icons to the official X logo across all sections
  • Navbar
  • Footer
  • Subscribe / social sections

Screenshots

Before

• Twitter bird icon used in social links

• Hamburger menu visible on desktop view

After

• Official X logo with correct size and color across all sections

• Hamburger menu hidden on desktop view

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds a responsive CSS rule to hide the hamburger menu toggle icons on desktop-sized viewports (≥1024px) while keeping them visible on smaller/mobile screens.

Flow diagram for responsive hamburger menu visibility

flowchart TD
  A[Check viewport width] --> B{Is viewport width >= 1024px?}
  B -- Yes --> C[Apply CSS: .sidebar-menu-toggle display none important]
  B -- Yes --> D[Apply CSS: .mobile-menu-toggle display none important]
  B -- No --> E[No override: toggles remain visible based on base styles]
  C --> F[Hamburger menu hidden on desktop]
  D --> F
  E --> G[Hamburger menu visible on mobile and small screens]

Loading

File-Level Changes

Change	Details	Files
Hide mobile and sidebar hamburger menu toggles on desktop viewports via a new media query.	Introduce a min-width: 1024px media query block at the end of the theme stylesheet. Within this desktop media query, set .sidebar-menu-toggle and .mobile-menu-toggle to display: none with !important to override existing styles.	css/theme-lava.css

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#904	Ensure the hamburger menu icons (.mobile-menu-toggle and any related toggles) are hidden on desktop/laptop viewports (≥1024px) while remaining visible on mobile (<1024px).	✅

Possibly linked issues

• Hamburger menu should be hidden on desktop view #904: The PR adds a media query to hide .mobile-menu-toggle and .sidebar-menu-toggle at ≥1024px, matching the issue.

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[sourcery-ai]

Hey - I've left some high level feedback:

• Consider avoiding !important on the .sidebar-menu-toggle and .mobile-menu-toggle rules if possible by increasing selector specificity or restructuring the CSS, so future overrides remain manageable.
• Double-check that the @media (min-width: 1024px) breakpoint aligns with the existing layout breakpoints in the project so the hamburger visibility matches the rest of the responsive design.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Consider avoiding `!important` on the `.sidebar-menu-toggle` and `.mobile-menu-toggle` rules if possible by increasing selector specificity or restructuring the CSS, so future overrides remain manageable.
- Double-check that the `@media (min-width: 1024px)` breakpoint aligns with the existing layout breakpoints in the project so the hamburger visibility matches the rest of the responsive design.

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[Ramprasadlondhe2005]

Thanks for the review and suggestions!
I’ve checked the existing breakpoints in the project and 1024px aligns with the current responsive behavior.

Regarding !important, it was added to safely override existing theme styles, but I’m happy to update it if maintainers prefer a different approach.
Please let me know how you’d like me to proceed.