add hover effect on images

## Description
hover effect is missing in images

**Describe the solution you'd like**
adding hover effect on images will enhance the looks of the website

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

## Additional Information

**Context**
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**Potential Implementation** (optional)
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**Screenshots or Mockups** (optional)
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**Priority** (optional)
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**Additional Notes** (optional)
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