Change date format

**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

I asked https://github.com/jesseduffield/lazygit/discussions/1899 here 18 days ago, no one answers it, so I guess such feature is not implemented.

I notice the date in lazygit have different formats

- relative time like `20 minutes ago` in `Local Branches->Log` window
- format like `Thu Apr 1 09:26:45 2022 +0800` in `Commits->Patch` window
- format like `Thu Apr 1 09:26:45 2022 CST` in `Commits` Pane in the list of commits

Please make it possible to customize all the date formats to
```
--date=format:"%Y-%m-%d %H:%M:%S"
```

I mean, anywhere in the lazygit, once for all?

**Describe the solution you'd like**
A clear and concise description of what you want to happen.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.