feat: Improved membership option page

[sau-mili]

Title and Issue number

Title : Improved the Pricing/membership page

Issue No. : #1382

Code Stack : HTML, CSS JS

Close #1382

Description

• fixed navbar
• modified the card designs with scaling for different categories of plans
• Added a floating get help option
• Modified dark-mode styles
• Added options in the plans
• Shadow effects also improved in the buttons
• responsiveness maintained

Video/Screenshots (mandatory)

before

after

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?

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

[netlify]

❌ Deploy Preview for taupe-cendol-f7e2bb failed.

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🔨 Latest commit	fd63d45
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[apu52]

@sau-mili there is a deployment problem in your PR , please try to submit a new PR , though I will merge this PR , but none of your changes will be shown in the website . Please try to fix this ASAP within 7 pm

[sau-mili]

okay

[sau-mili]

Done, please check