Expand font glyph coverage for Latin scripts

[Yesanith]

Replace hardcoded French/Romanian glyph additions with a full Latin Extended-A range import (U+0100–U+017F), then explicitly add Romanian comma-below letters (ȘșȚț) from Latin Extended-B. This broadens support for commonly typed accented characters like Turkish, Polish, Czech, Hungarian, and Baltic letters.

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[Yesanith]

Worth mentioning this helps beyond Chat 2 itself. it also unblocks a fix in
ChatTranslated: kelvin124124/ChatTranslated#104

That plugin prints translations into the game's chat log, so translating into Turkish or
Polish comes out as =unu g=rd=m, since the game font has no glyph for ş. Its fallback
is to swap those letters for the closest match (ş→s) readable, but the spelling is
gone. Chat 2 draws the log with a configurable font instead, and the default
(Noto Sans CJK) has these letters, so once this PR is in, the plugin can send them through
untouched and those users see the real spelling.

So merging this gets correct characters in translated messages for Chat 2 users on the
default font setup. Nothing needed on your side beyond this PR.