feat: Modified custom scrollbar .

[meetarora10]

Title and Issue number

Title : Improving the custom scrollbar .

Issue No. : #1137

Code Stack : HTML,CSS

Close #1137

Description

I have added a custom scrollbar whose UI matches with the website . This scrollbar can be dragged up and down easily and thus enables both upward and downward scrolling .

Video/Screenshots (mandatory)

Tourguide.-.Google.Chrome.2024-07-21.13-26-18.mp4

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Checklist:

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have gone through the contributing.md file before contributing

Additional context:

##Are you contributing under any Open-source programme?
Yes

• I am contributing under GSSOC'24
• I am contributing under VSOC'24

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[apu52]

@meetarora10 this pR has some merge conflicts .please try to resolve the conflicts , so that I can review the code & merge it

[meetarora10]

@apu52 done .

[apu52]

@meetarora10 good work