SerialOverLan - Replace SSH keys dropdown by SSH key textarea

[JayBeeDe]

Question	Answer
Branch?	master
Bug fix?	no
New feature?	yes
Breaking change?	no
License	BSD 3-Clause

• [x] Try to keep pull requests small so they can be easily reviewed.
• [x] Commits are signed-off
• [x] Only FR translations have been updated
• [x] Branch is up-to-date with target branch
• [x] Lint has passed locally
• [x] Standalone app was ran and tested locally
• [x] Ticket reference is mentioned in linked commits (internal only) ~Breaking change is mentioned in relevant commits~

Description

Remove API call /me/sshKey dependency for SerialOverLan feature SSH key-based authentication is still possible for SerialOverLan but specifying the public SSH key directly in a textarea Opportunity and necessity to make a little visual refacto of the IPMI page

Related

ref: MANAGER-12570