[content-service] do git config after we have an init'd folder

[kylos101]

Description

Related to #18612

w/o, we get errors like:
git config feature.manyFiles true failed (chdir /dst/<repo to clone>: no such file or directory)

We don't return failed config as an error, so it shouldn't block workspace start, but it also means we aren't getting the benefit of these recent suggestions.

Summary generated by Copilot

🤖[deprecated] Generated by Copilot at c28d32b

Fix git configuration for content-service initializer. Ensure that components/content-service/pkg/initializer/git.go runs git commands in the correct order and with the necessary features enabled.

Related Issue(s)

Fixes n/a

How to test

From a preview in https://kylos101-git-config.preview.gitpod-dev.com/workspaces (created via leeway run dev:preview)

1. Verify the config (ref) is set:

gitpod@kylos101-dotfiles-pxk9pkhcs63:/workspace/dotfiles$ git config --list | grep manyfiles
feature.manyfiles=true
gitpod@kylos101-dotfiles-pxk9pkhcs63:/workspace/dotfiles$ git config --list | grep writecommitgraph
fetch.writecommitgraph=true

2. Open a repo and commit/push something to it
3. These should no longer register as errors in the logs - we were never setting these values

Documentation

Preview status

gitpod:summary

Build Options

Build

• /werft with-werft
  Run the build with werft instead of GHA
• leeway-no-cache
• /werft no-test
  Run Leeway with --dont-test

Publish

• /werft publish-to-npm
• /werft publish-to-jb-marketplace

Installer

• analytics=segment
• with-dedicated-emulation
• workspace-feature-flags
  Add desired feature flags to the end of the line above, space separated

Preview Environment / Integration Tests

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-gce-vm
  If enabled this will create the environment on GCE infra
• /werft preemptible
  Saves cost. Untick this only if you're really sure you need a non-preemtible machine.
• with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh. If enabled, with-preview and with-large-vm will be enabled.
• with-monitoring

/hold

[kylos101]

👋 @aledbf could you peek at this? Presently, on each workspace start, they generate an error (because the directory does not exist or git initialized). I figure we can remove (to avoid the errors), or land in main (to avoid the errors, and get the config benefit).