Fix: translation id makes a shortcode event swallow the following lines

[ajveach]

The problem

With translation enabled, any bracketed event that carries a translation id
silently absorbs the lines after it. Those lines never become events — they
just disappear at runtime, with no error and nothing visibly wrong in the
timeline text.

Reproduction

With translation/enabled on, a timeline saved as:

[text_input text="What is your name?" var="name"] #id:1
Some Character: First line.
Some Character: Second line.

parses to a single text_input event. Both text lines are gone.

If a later line does end with ], the swallowing stops there — and that
event is consumed as well, so a bracketed event following the affected one
is lost along with the lines between them.

Cause

DialogicEvent.is_string_full_event() treats a shortcode event as complete
only when the string ends with ']':

if get_shortcode() != 'default_shortcode': return string.strip_edges().ends_with(']')

but _store_as_string() appends the translation id after the closing
bracket:

return to_text() + ' #id:'+str(_translation_id)

So the event never reads as complete, and the collect loop in
DialogicTimeline.process() —
while not event.is_string_full_event(event_content) — keeps appending
following lines into it until one ends with ']'.

Text events are unaffected, because they return true unconditionally. That
is why this only shows up once translation is enabled and ids begin to be
written onto bracketed events.

The fix

is_string_full_event() now strips a trailing #id: before testing for the
bracket, the same way _load_from_string() and _test_event_string()
already do for the same suffix.

The strip is gated on can_be_translated(), matching _store_as_string() —
an id is only ever written under that condition, so no event that carries one
can be missed, and no event that lacks one changes behaviour.