feat: health check and upload speed features

[webbdays]

Work: Completed.

1. health check feature where we show green or blue dot on top-right of the app. user can click on it for more details.
2. upload speed feature where we show "upload speed" metric at the bottom-middle of the screen. user can click on it for more details.
3. written test cases.(not yet for all)

fixes #73 /claim #73

Kindly let me know any need for improvements. Thank you.

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[webbdays]

@richiemcilroy feature(#73 ) is completed. Kindly review the PR.

[webbdays]

@richiemcilroy for health_check upload of sample recording. which api we should use which approach?

1. existing api to upload new recordings. /api/upload/new
2. create health_check api (just for this requirement) to upload the sample video file and at the same time get upload speed calculated.

i have choose 2nd approach. what do you say.

thanks.

[webbdays]

1. health check and upload speed ui

2. health check status popup on click

3. upload status popup on click

4. poor network

5.. upload speed popup when poor network

6. when we cannot get health check status

7. health check popup when failed to get health check status

[webbdays]

:smile: