For #13715, this:
- Upgrades the Go version to `1.21.1`, infrastructure changes are
addressed separately at https://github.com/fleetdm/fleet/pull/13878
- Upgrades the linter version, as the current version doesn't work well
after the Go upgrade
- Fixes new linting errors (we now get errors for memory aliasing in
loops! 🎉 )
After this is merged people will need to:
1. Update their Go version. I use `gvm` and I did it like:
```
$ gvm install go1.21.1
$ gvm use go1.21.1 --default
```
2. Update the local version of `golangci-lint`:
```
$ go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.54.2
```
3. (optional) depending on your setup, you might need to re-install some
packages, for example:
```
# goimports to automatically import libraries
$ go install golang.org/x/tools/cmd/goimports@latest
# gopls for the language server
$ go install golang.org/x/tools/gopls@latest
# etc...
```
for #13450, this additionally adds minor UI/UX tweaks to the migration
flow:
1. Increased padding between the notification screenshot and the text
(hacked by using a PNG for the image as we can't add padding)
2. Centered the text
3. Made sure that all dialogs take over the screen
For #11858, I reproduced the issue by running a local server behind
ngrok, _with the exact_ same path as the one in the website:
`https://server-url/images/permanent/mdm-migration-screenshot-768x180@2x.png`
I tried multiple combinations, but at the end, removing the `@` made the
trick. My guess is that's something to do with the markdown parser
library used by swiftDIalog.
I also removed a rogue `\` that was being displayed.
