wizard: fix panic on any key press

When using :new-account, aerc crashes when entering a letter with the
following trace:

panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x66930e]

goroutine 1 [running]:
git.sr.ht/~rjarry/aerc/log.PanicHandler()
	git.sr.ht/~rjarry/aerc/log/panic-logger.go:51 +0x73e
panic({0xa2b200, 0x10204e0})
	runtime/panic.go:890 +0x262
git.sr.ht/~rjarry/aerc/config.(*KeyBindings).GetBinding(0xc000370000?, {0xc000634c48?, 0xc000118900?, 0x5843da?})
	git.sr.ht/~rjarry/aerc/config/binds.go:331 +0x2e
git.sr.ht/~rjarry/aerc/widgets.(*Aerc).Event(0xc000370000, {0xbd1e60?, 0xc00112e000?})
	git.sr.ht/~rjarry/aerc/widgets/aerc.go:309 +0x196
git.sr.ht/~rjarry/aerc/lib/ui.(*UI).HandleEvent(0xc00031e840, {0xbd1e60?, 0xc00112e000})
	git.sr.ht/~rjarry/aerc/lib/ui/ui.go:141 +0x162
main.main()
	git.sr.ht/~rjarry/aerc/aerc.go:246 +0xa89

The issue is that the keyNames map is empty when defaultBindsConfig() is
called and ParseBinding("<C-q>", ":quit<Enter>") returns an error:
Unknown key 'C-q' which is (unfortunately) ignored and nil is inserted
in the wizard bindings.

Fix that by initializing keyNames at the module level and remove init().

Fixes: c05c2ffe0424 ("config: make various sections accessible via global vars")
Reported-by: Moritz Poldrack <moritz@poldrack.dev>
Signed-off-by: Robin Jarry <robin@jarry.cc>
Tested-by: Moritz Poldrack <moritz@poldrack.dev>

0 files changed, 0 insertions, 0 deletions