feat(web & vue): icons added for recent & popular searches

[anik-ghosh-au7]

Before submitting a pull request, please make sure the following is done:

• Describe the proposed changes and how it'll improve the library experience.

The below-mentioned changes are applicable for the DataSearch and Category components

1. Default icons added for recent and popular searches
2. Support added to override default icons though - recentSearchesIcon or popularSearchesIcon props
3. Support added to customize the icons through the recent-search-icon or
   popular-search-icon keys of the innerClass prop

• Please make sure that there are no linting errors in the code.

• Add a demo video/gif/screenshot to explain how did you test the fix.

1. Demo (web) - https://www.loom.com/share/139ecfafe0a245a0acc995f409f7761d
2. Demo (vue) - https://www.loom.com/share/c326e5b28fd6479e973f1658451fa1c6

• If it is a global change, try to add any side effects that it could have.

• Create a PR to add/update the docs (if needed) at here.
  feat: recent searches and popular suggestions icons added Docs#180

• Create a PR to add/update the storybook (if needed) at here.

1. Playground - feat: example added for datasearch with custom suggestion icons playground#65
2. Vue Playground - feat: example added for datasearch with custom suggestion icons vue-playground#26

[siddharthlatest]

@anik-ghosh-au7 Can we use idiomatic naming convention for the innerClass keys? We can use the same name for them as the class names.

Can you also include a link to the doc changes PR associated with this enhancement?

We should include a storybook story for the same.

[anik-ghosh-au7]

@siddharthlatest I will make the changes and create the PR for docs

[bietkul]

@anik-ghosh-au7 Make the following changes:

• The default color of the icon doesn't match the suggestion text. The color of the icons is dark and bold which catches the user’s eye from the suggestion.
  

Share a demo after making the changes.

[anik-ghosh-au7]

@bietkul

Final demo (react & vue) -

https://www.loom.com/share/7eebcfdb8f4d4e548dd082a396e2546d

[anik-ghosh-au7]

@bietkul, I have made the above changes

Final demo -

https://www.loom.com/share/3738113fe17844fba38f24b46884ca18