fix: Reduce svg assets size

[sharabhh]

Description

reduced svgs file size for : -

(these files are in src/assets)

voice_icon from 10.26kb to 7.30kb chat_icon from 24.53kb to 16.13kb audio_icon from 5.30kb to 3.96kb file_attachment_icon from 4.13kb to 3.08kb notification_icon from 4.61kb to 3.49kb

I wasn't able to compress WAV file

Closes #21

What change does this PR introduce?

reduced svg file sizes to make the package smaller

Please select the relevant option(s).

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update (changes to docs/code comments)

What is the proposed approach?

Please give a short overview/explanation on the approach taken to resolve the issue(s). used an online svg compressor to compress the images

Checklist:

• [ ] The commit message follows our adopted guidelines
• [ ] Testing has been done for the change(s) added (for bug fixes/features)
• [ ] Relevant comments/docs have been added/updated (for bug fixes/features)

[tjtanjin]

LGTM, thanks!

[sharabhh]

that's great! :)