Addresses #758: Fix Service Box display mat property

[simsausaurabh]

Changes proposed in this pull request

• Fixed Service Box mat property and adjusted its position.
• Made it to white on home page.
• Fixed its color on results page.
• It acquires background color of page.

Screenshots (if appropriate)

Link to live demo: http://pr-769-fossasia-loklaksearch.surge.sh

Closes #
Parent Issue: #758

[simsausaurabh]

@praveenojha33 Please review.

[codecov]

Codecov Report

Merging #769 into development will decrease coverage by 0.03%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development     #769      +/-   ##
===============================================
- Coverage        51.63%   51.59%   -0.04%     
===============================================
  Files              100      100              
  Lines             2504     2504              
  Branches           278      278              
===============================================
- Hits              1293     1292       -1     
  Misses            1184     1184              
- Partials            27       28       +1

Impacted Files	Coverage Δ
src/app/lazy-img/lazy-img.service.ts	62.22% <0%> (-2.23%)	⬇️

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[praveenojha33]

LGTM 👍

[simsausaurabh]

@mariobehling Please review.