Without this, keyboard enhancements events won't be sent to update

…ements

This change exposes the `KeyboardEnhancements` type and tracks requested
and active enhancements in the `Program` struct. This change also
renames the `KeyboardEnhancement` type to `KeyboardEnhancementOption`
and `keyboardEnhancements` to `KeyboardEnhancements` as well as
`EnableKeyboardEnhancements` to `RequestKeyboardEnhancements`.

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

This implements the new cursed ferocious renderer. This is based on the
new `cellbuf.Screen` renderer. This renderer is more efficient and
flexible than the previous renderer.

The renderer controls the altscreen buffer and cursor visibility which
means we don't need to do so in Bubble Tea. Instead, Bubble Tea can
focus on the event loop and the application state.

This also removes the experimental flags and changes the renderer
interface to be more explicit about the methods that are available.

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

…sted and active enhancements (#1286)

refactor: keyboard: expose type and track requested and active
enhancements

This change exposes the `KeyboardEnhancements` type and tracks requested
and active enhancements in the `Program` struct. This change also
renames the `KeyboardEnhancement` type to `KeyboardEnhancementOption`
as well as`EnableKeyboardEnhancements` to `RequestKeyboardEnhancements`.



Fixes: #1283

* feat: create a panic trace file

When Bubble Tea panics, it is really useful to have a trace file that
contains the panic message and the stack trace. This does that exactly.

* feat: make panic trace optional via TEA_DEBUG

The main and alternate screens have their own Kitty keyboard state
stack. We need to request keyboard enhancements again when entering or
exiting the alternate screen.

[v2] Use Ultraviolet

Kitty keyboard can be set to a specific state instead of using the
push/pop stack approach. The latter might break and sometimes won't work
with things like Zellij.