feat: adding unit tests for community folder

[reachaadrika]

Description

Community section of the website comprises of 4 components , header ,hero component and cards components which are of 2 types HomeCard and Card ( which has 2 props namely 'small' and 'large' . A brief description about each component and tests included in them is given below :

1. Header.js : This component is the normal heading component for this section which consists of some hardcoded text and subheadings related to it . The tests that I included for this component were as follows :

• renders the Header component correctly
• displays the correct text in the Heading components and styles
• contains a Button component with the correct props (link to AsyncAPI discussions )
  
  

2. Hero.js : This component has a orbit like structure . The tests I included for this component were as follows :

• renders the complete component
• renders the first orbit with orbitData
• renders the second orbit with orbitData
• renders the third orbit with orbitData
  
  

3. HomeCard.js : This component had headings and taglines props passed to , so I have passed some dummy texts and have tested for the same .

• renders correctly
  

4. Card.js : This component is of 2 types , one is small cards and other one is for large cards . So I have tested for small prop and large prop separately along with their styles . Following are the tests :

• renders small card correctly
• renders large card correctly
  

Related issue(s)
Fixes #1760

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[github-actions]

⚡️ Lighthouse report for the changes in this PR:

Category	Score
🔴 Performance	42
🟢 Accessibility	98
🟢 Best practices	100
🟢 SEO	100
🔴 PWA	30

Lighthouse ran on https://deploy-preview-1761--asyncapi-website.netlify.app/

[imabp]

Resolve the conflicts before merging

[akshatnema]

/rtm