Made the cart page mobile friendly.

[prateekjha1204]

Overview

1. This PR fixes or fixes part of #77
2. This PR does the following: Makes the cart page mobile friendly.

Essential Checklist

• [ ] The PR title starts with "Fix #bugnum: ", followed by a short, clear summary of the changes. (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• [ ] "Allow edits from maintainers" is checked. (See here for instructions on how to enable it.)
• [ ] The PR is made from a branch that's not called "main/master".

Proof that changes are correct

Here is the Screenshot

PR Pointers

@tushitshukla03 PTAL

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[prateekjha1204]

@tushitshukla03 Did the requested changes, below is the Screenshot

[prateekjha1204]

@thejaysharma Made the page responsive for tablets, below is the Screenshot

[tushitshukla03]

@prateekjha1204 the illustration(image) in desktop has become too small. Please check everything is fine before making commits

[tushitshukla03]

@prateekjha1204 your branch is behind behind main

[prateekjha1204]

@tushitshukla03 I have updated the Branch and I have also made the requested changes for the text of the price summary box. Font-weight of the text is 500 and the color of the price are #81858b, here's the SS

PTAL