Add auto-refresh feature

[chrisjsewell]

Resources:

• https://nodejs.org/en/docs/guides/timers-in-node/
• https://github.com/maxfie1d/vscode-timer/blob/a502122e0f3e78aef9a5c4eddeb5d5eb3e637d00/src/models/timer.ts#L6

[chrisjsewell]

54c0af6ad0811128b16320bd58211524e3c82ee5 can now be used to check if database has changed, then we only refresh if this is the case