Shifting the dark/light toggle button in mobile view

[anushruti11]

Fixes

Describe the changes you've made

Shifted the dark/light toggle button in footer in mobile view

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

NA

Deploy your changes to github page or netlify and mention deployment link:

https://anushruti11.github.io/Voters-Registration-Portal/

Additional context (OPTIONAL)

Add any other context or screenshots about the feature request here.

Test plan (OPTIONAL)

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Checklist

• [x] I have mentioned related issue number in PR description.
• [ ] I have added screenshots and related demo links of my changes..
• [x] The title of my pull request is a short description of the requested changes.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] Open Source Program names(OPTIONAL: If you participated in any open-source program then please mention the program name here)