upcase issue ID field to prevent failed matching due to case

Added CSS to upcase any text in the issue key field. This fixes an issue where the given ID is not matched to a JIRA issue if the provided ID includes lowercase letters.

Previously:
`serv-1234` would not match `SERV-1234` and would result in a new issue created in JIRA

Now:
`serv-1234` is upcased as it is entered (thanks CSS) to match `SERV-1234` correctly