fix(statusline): use current_usage instead of total_input_tokens for context display#923

AndriiBarabash wants to merge 5 commits intoryoppippi:mainryoppippi/ccusage:mainfrom

AndriiBarabash:fix/statusline-context-window-tokensAndriiBarabash/ccusage:fix/statusline-context-window-tokensCopy head branch name to clipboard