AI Changelog Aggregator

Improved the information density of file read/edit timeline events
Fixed an inaccuracy in the --banner help text; it previously implied that it would persistently change the configuration to always show the startup banner
Improved the /models list to ensure that a user only sees models they have access to use -- previously, if a user tries to use a model they do not have access to (because of their Copilot plan, their geographic region, etc), they received a model_not_supported error. This should prevent that by not even showing such models as options in the list (Fixes https://github.com/github/copilot-cli/issues/112, https://github.com/github/copilot-cli/issues/85, https://github.com/github/copilot-cli/issues/40)
Fixed a bug where pressing down arrow in a multi-line prompt would wrap around to the first line (This is on the way to implementing https://github.com/github/copilot-cli/issues/14)
Added a scrollbar to the @ file mentioning picker and increased the size of the active buffer to 10 items
Improved the experience of writing prompts while the agent is running -- up/down arrows will now correctly navigate between options in the @ and / menus