feat: adjust code editor font size

[krummbar]

Description

Fixes #1596

New

Adds a setting to configure the code editor font size. If unchanged it defaults to inherit mode. Font size property is applied in following components

• Request body editor
• Script editor
• Tests editor
• Docs (edit-mode)
• GraphQL Query editor
• GraphQL Variables editor
• Generated Code

https://github.com/usebruno/bruno/assets/1665841/601dace9-d487-4414-ab1a-2e793948e674

Fix

Fixes font-family not being applied to GraphQL query editor.

Before https://github.com/usebruno/bruno/assets/1665841/60294e21-1128-47dc-8404-77a23ea74e0c

After https://github.com/usebruno/bruno/assets/1665841/c4792ca3-6af6-4caf-b428-a4baccaf9bba

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Contribution Checklist:

• [ ] The pull request only addresses one issue or adds one feature. While working on this, I found out that font-family change is not applied to GraphQL requests. Since this is only a minor change I included this as well. Let me know if I should create a separate PR for this.
• [x] The pull request does not introduce any breaking changes
• [x] I have added screenshots or gifs to help explain the change if applicable.
• [x] I have read the contribution guidelines.
• [x] Create an issue and link to the pull request.

[end3rbyte]

I've tested locally, that works. Thanks for it @krummbar