Similar to the column header on boards (#5358), it should be possible to navigate and submit changes to the column name and description using the keyboard. this should improve UX since they don't have to use the mouse necessarily.

AC:
while editing a column in the template column configurator:

• in the name input, pressing Enter should submit changes (both name and description) and exit the edit mode.
• in the description input, pressing Cmd/Ctrl + Enter should submit changes (both name and description) and exit the edit mode.
• in the description input, pressing Enter should create a newline.
• in either inputs, pressing Escape should discard changes and exit the edit mode.