Group common project templates
### Problem to solve
We are looking to add 18 new project templates related to AWS Lambda. The template list is already large (17 templates) and adding another 18 may not provide the best user experience.
### Intended users
developers
### Further details
<!-- Include use cases, benefits, and/or goals (contributes to our vision?) -->
### Proposal
Group common templates so that list is more usable and provides a better UX. The following categories could be grouped:
1. Pages
1. Netlify
1. AWS Lambda Application
This would reduce the list from 35 entries to 8, making for a better experience.
### Permissions and Security
<!-- What permissions are required to perform the described actions? Are they consistent with the existing permissions as documented for users, groups, and projects as appropriate? Is the proposed behavior consistent between the UI, API, and other access methods (e.g. email replies)? -->
### Documentation
<!-- See the Feature Change Documentation Workflow https://docs.gitlab.com/ee/development/documentation/feature-change-workflow.html
Add all known Documentation Requirements here, per https://docs.gitlab.com/ee/development/documentation/feature-change-workflow.html#documentation-requirements -->
### Testing
<!-- What risks does this change pose? How might it affect the quality of the product? What additional test coverage or changes to tests will be needed? Will it require cross-browser testing? See the test engineering process for further guidelines: https://about.gitlab.com/handbook/engineering/quality/guidelines/test-engineering/ -->
### What does success look like, and how can we measure that?
<!-- Define both the success metrics and acceptance criteria. Note that success metrics indicate the desired business outcomes, while acceptance criteria indicate when the solution is working correctly. If there is no way to measure success, link to an issue that will implement a way to measure this. -->
### Links / references
issue