Landing page component overlapping issue.

[santosh-pingle]

IMPORTANT: All PRs must be linked to an issue (except for extremely trivial and straightforward changes).

Fixes #1112

Description
Devices with small resolution and dpi/ppi, component grids were overlapping on each other.
Instead of giving hard coded value as per figma, match parent value is provided as width.

Alternative(s) considered
Have you considered any alternatives? And if so, why have you chosen the approach in this PR?

Type
Choose one: Bug fix

Screenshots (if applicable)

Checklist

• I have read and acknowledged the Code of conduct
• I have read the Contributing page
• I have signed the Google Individual CLA, or I am covered by my company's Corporate CLA
• I have discussed my proposed solution with code owners in the linked issue(s) and we have agreed upon the general approach
• I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the style guide of this project
• I have run ./gradlew check and ./gradlew connectedCheck to test my changes locally
• I have built and run the reference app(s) to verify my change fixes the issue and/or does not break the reference app(s)

[codecov]

Codecov Report

Merging #1184 (f9b414b) into master (825e047) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1184   +/-   ##
=========================================
  Coverage     84.57%   84.57%           
  Complexity      627      627           
=========================================
  Files           135      135           
  Lines         10404    10404           
  Branches        786      786           
=========================================
  Hits           8799     8799           
  Misses         1210     1210           
  Partials        395      395           

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