Create gRPC Test fails when "." is present in proto package

[exocom]

Describe the bug
When loading a proto file with a "." in the package name, the "Methods" dropdown fails to show the methods.

To Reproduce
Steps to reproduce the behavior:

1. Go to the link: https://github.com/open-telemetry/opentelemetry-demo/blob/v1.1.0/pb/demo.proto
2. Use package hipstershop; - it works fine.
3. Use package hipstershop.v1; - it fails to display methods.

Expected behavior
The "Methods" dropdown should show the methods even with a "." in the package name.

Screenshots
N/A

Browser (please complete the following information):

• Browser: [Chrome]
• Version: [latest] OSX

Additional context
Having a "." in the package name is common protobuf practice and should work.

[xoscar]

Hello @exocom thanks for the report, we'll take a look to see what is going on!