Updates SVG extraction script: Hide notes for translators

As announced in one of the previous merges: !978 (comment 2000108)
Translator notes will no longer be extracted from .svg's to .md's.

It's also safer to skip hidden notes, to prevent hiding dialogs in case of a wrong order (and showing notes instead). Example: LD_EP30

This will collide the pipeline of !988 (merged) and !972 (merged) when they'll be ready to merge, requiring pipeline fix after. (just rerun transcript)

All changes to the transcript have of course been checked.

Settings:

These are exception settings for layer: blacklisted layer names to skip,
whitelist (force) reads a text/flow with this id within the blacklisted layer (using intergrated filter).

g_layer_blacklist_labels = ("notes", "translatornotes", "note", "transla-notes")
g_child_whitelist_ids = ("text4580-1-7-3-6", "text4178-6-5-9-0-7-0-4")