Rename .figma.env variables
The following discussion from !5791 should be addressed:
- [ ] @sdejonge started a [discussion](https://gitlab.com/gitlab-org/gitlab-services/design.gitlab.com/-/merge_requests/5791#note_3193102785): (+3 comments)
> **thought:** I wonder if we can leverage the same `FIGMA_TOKEN` for both since they are pretty similar, wdyt?
>
> ```suggestion:-41+0
> # To get your Figma API token (FIGMA_TOKEN):
> # 1. In Figma homepage, click profile picture and select "Settings"
> # 2. Go to "Security" tab
> # 3. In "Personal access tokens" section press "Generate new token"
> # 4. Give your token a descriptive name and select scopes:
> # 4.1 file_content:read - Figma design token sync / Figma code connect
> # 4.2 file_variables:read - Figma design token sync
> # 4.3 file_variables:write - Figma design token sync
> # 4.4 file_code_connect:write - Figma code connect
> # 5. Copy the generated token (starts with "figd_")
> FIGMA_TOKEN="figd_ABC123"
>
> # To get the Figma file ID (FIGMA_FILE_ID):
> # This should point to the design token library file
> # 1. Open the design token library Figma file
> # 2. Right-click on file name and select "Copy link"
> # 3. Copy the FILE_ID from URL https://www.figma.com/design/{FILE_ID}/
> #
> # For a specific branch:
> # 1. Switch to your desired branch in Figma
> # 2. Copy the BRANCH_ID from URL: https://www.figma.com/design/{FILE_ID}/branch/{BRANCH_ID}
> FIGMA_FILE_ID="ABC123"
> ```
TLDR
* Should we reuse the same PAT for different tasks?
* How might we rename the syncing env variable names to be clearer
* I don't think we can change the name of the code connect one as that is determined by code connect cli
issue