(KoohiiEditStory): suppress TS errors related to read-only props, for now
(KoohiiEditStory): suppress TS errors related to read-only props, for now

Suppress errors so TS emits code, we're trying to get the webpack bundles
and TypeScript working.

The main issue right now is that separate bundles somehow have their own
scope/instance of Vue. Vue is included only once in the vendors or common
bundle, which is fine, but has multiple instances causing warnings at
run time in Study & Review pages.

fabd/kanji-koohii,kanji-koohii/kanji-koohii,fabd/kanji-koohii,fabd/kanji-koohii,kanji-koohii/kanji-koohii,kanji-koohii/kanji-koohii,kanji-koohii/kanji-koohii,fabd/kanji-koohii,kanji-koohii/kanji-koohii,fabd/kanji-koohii,fabd/kanji-koohii