LogTail gains in-place search: matches are highlighted, the active one is
scrolled into view, and a "3/6" counter with up/down (Enter, Shift+Enter,
Cmd+G) steps through them, reusing the find bar's key handling and labels.
The Command Center system log and the MCP log pane share it, so there is one
log component instead of a Command Center fork.
Clearing a search re-engages follow-the-tail instead of leaving the pane
parked where the last match was.
WARNING/ERROR/CRITICAL lines get a thin gutter mark, read from the level
column of the log format, so an INFO line mentioning ERROR is not flagged.
Command Center sections use the same breadcrumb header as Settings.
Co-authored-by: Sonnenwerk <a.majuskel@gmail.com>
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