Fix output from gitops to use "fleets" instead of "teams", "queries" instead of "reports" (#40610)

<!-- Add the related story/sub-task/bug number, like Resolves #123, or
remove if NA -->
**Related issue:** Resolves #40621 

# Details

This PR updates the output from `fleetctl gitops` and `fleetctl apply`
to use the correct terminology:
* "fleet" instead of "team"
* "report" instead of "query" (where appropriate)
* "for unassigned hosts" in place of "No Team" where possible, and "for
fleet Unassigned" otherwise.

All changes other than tests are in `client.go` and are text-only; no
functional code is changed (and no code relies on the strings besides
tests).

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

- [ ] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
n/a

## Testing

- [X] Added/updated automated tests
- [ ] QA'd all new/changed functionality manually

I did a `fleetctl generate-gitops` and a `fleetctl gitops` run and saw
the updated logs:
```
[+] would've applied EULA
[+] would've applied certificate authorities
[+] would've applied fleet config
[+] would've applied MDM profiles
[+] would've applied enroll secrets
[+] would've applied 1 report
[+] would've applied 1 software package for fleet 'Unassigned'
[+] would've applied 0 app store apps for fleet 'Unassigned'
[+] would've applied webhook settings for unassigned hosts
[+] would've applied 1 policy
[!] gitops dry run succeeded
```

but I did not go through and try and replicate every log or error
message. I think the best we can do on this one is eyeball the code
changes for mistakes.

cmd/fleetctl/integrationtest/gitops/software_test.go

@@ -72,8 +72,8 @@ func TestGitOpsTeamSoftwareInstallers(t *testing.T) {
 		{"testdata/gitops/team_setup_software_defined_in_conflicting_places.yml", " Setup experience may only be specified directly on software or within macos_setup, but not both."},
 		{"testdata/gitops/team_setup_software_defined_in_conflicting_places_vpp.yml", " Setup experience may only be specified directly on software or within macos_setup, but not both."},
 		{"testdata/gitops/team_setup_software_invalid_script.yml", "no_such_script.sh: no such file"},
-		{"testdata/gitops/team_setup_software_invalid_software_package.yml", "no_such_software.yml\" does not exist for that team"},
-		{"testdata/gitops/team_setup_software_invalid_vpp_app.yml", "\"no_such_app\" does not exist for that team"},
+		{"testdata/gitops/team_setup_software_invalid_software_package.yml", "no_such_software.yml\" does not exist for that fleet"},
+		{"testdata/gitops/team_setup_software_invalid_vpp_app.yml", "\"no_such_app\" does not exist for that fleet"},
 		{"testdata/gitops/team_software_installer_valid_ipa.yml", ""},
 		{"testdata/gitops/team_software_installer_subdir_ipa.yml", ""},
 	}
@@ -371,8 +371,8 @@ func TestGitOpsNoTeamSoftwareInstallers(t *testing.T) {
 		// No team tests for setup experience software/script
 		{"testdata/gitops/no_team_setup_software_valid.yml", ""},
 		{"testdata/gitops/no_team_setup_software_invalid_script.yml", "no_such_script.sh: no such file"},
-		{"testdata/gitops/no_team_setup_software_invalid_software_package.yml", "no_such_software.yml\" does not exist for that team"},
-		{"testdata/gitops/no_team_setup_software_invalid_vpp_app.yml", "\"no_such_app\" does not exist for that team"},
+		{"testdata/gitops/no_team_setup_software_invalid_software_package.yml", "no_such_software.yml\" does not exist for that fleet"},
+		{"testdata/gitops/no_team_setup_software_invalid_vpp_app.yml", "\"no_such_app\" does not exist for that fleet"},
 		{"testdata/gitops/no_team_software_installer_valid_ipa.yml", ""},
 		{"testdata/gitops/no_team_software_installer_subdir_ipa.yml", ""},
 	}