[Bug Report] WebUI Template File Naming Error Not Descriptive of Acual Config Issue.

[rjDipcord]

Describe the bug
WebUI error not descriptive enough when naming project compose templates incorrectly. Some chars are not permitted in the title of a template. An example of a disallowed char would be "/". When a user attempts to create a template with this character in the title, the error "Not Found: Not Found" is displayed.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'projects'.
2. Attempt to save your compose template with a "/" in the name.
3. Click 'submit'.
4. See error

Expected behavior
An error handle to catch and display something like "Invalid character in title. Disallowed characters are: "/ \ #"" etc...

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Browser: Firefox
• Yacht Version: v0.0.7-alpha-2023-01-12--05

Additional context
Different behavior when using a "#" instead of "/" This could indicate an underlying security/sanitation issue.