UI fixes for QA-reported issues

[deaflynx]

Fixes for UI issues reported on the QA board:

• fix: render json editor as non-interactive and visually disabled in view mode
• fix: disable getting started dialog autofocus to prevent scroll on open
• fix: sort chart series data ascending so dataZoom preview matches the main chart
• fix: prevent overlapping axis labels on compact monitoring charts
• fix: remove duplicate time label in datetime picker header
• fix: open timewindow panel above trigger in lower half of viewport
• fix: remove redundant scrollbar in home broker settings card
• fix: run home monitoring charts resize recalculation inside Angular zone