fix(toggles): record the no-Windows-Terminal state under the correct key

minimal.reg (the "Add Terminals, no Windows Terminal" option of the
ContextMenuTerminals toggle) wrote its state marker to
HKLM\SOFTWARE\AtlasOS\ExtractContextMenu, while disabled.reg and enabled.reg
correctly use HKLM\SOFTWARE\AtlasOS\ContextMenuTerminals. A separate
ExtractContextMenu toggle exists, so selecting this option left the terminals
state stale and clobbered the unrelated toggle's key. Point it at
ContextMenuTerminals; the distinct state value (1) is unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: jacksyrm