bug: component browser: insert double-indents when the cursor is already indented #329

Bug summary

Insert puts the generated text at the cursor as-is, and that text already carries its own indent. With the cursor on an indented empty line, which is where you'd normally be after pressing Enter under include:, only the first line gets the extra indent. inputs: ends up at the same column as the -, which is invalid YAML.

Steps to reproduce

1. Open a file with include: and put the cursor on the next line, indented two spaces.
2. Run GitLab CI: Browse Components, open Details on any component with inputs and tick a few.
3. Click Insert Component.

Expected behavior

The include lines up under include: no matter where the cursor sits on the line.

Actual behavior

The first line is indented twice, the rest once, and the YAML no longer parses.

Component context (if applicable)

Any component. Seen with components/secret-detection.

Minimal .gitlab-ci.yml snippet

include:
    - component: gitlab.com/components/secret-detection/secret-detection@2.4.0
    inputs:
      stage: "test" # optional

Extension logs

No response

Affected area

Component Browser

Extension version

0.17.19