Periodical API timeout

[lidel]

Something to investigate:

Firefox 80 and go-ipfs 0.7.0-rc1 with ~600 displays "automatic mode on/off" popup a few times an hour.

This is caused by timeout on swarm peers call we make to display peer count:

Unsure about details (maybe my node runs on a slow machine? go-ipfs blocking?), needs more analysis.

Potential fixes:

• add retry logic
• increase timeout
• update peer count only when needed (when peer count is no longer displayed on the page – see Add an indicator to show that resources have been loaded over IPFS #662)