chore: dictionary curation

[hippietrail]

Issues

Fixes #4052
Related to #4111 but current spellcheck doesn't treat terms with internal hyphens as words.
Might improve #4119

Description

Dictionary curation
+X11
+unexpandable
+unarchive
+surreality
-RISC - generate possessive
+RISC-V
+unadapted
-rather - remove all POS other than adverb

How Has This Been Tested?

cargo test

AI Disclosure

• I am a human and didn't use any AI.
• I used LLM features of my editor, but not an agent.
• I consulted one or more coding AIs, but didn't use an agent.
• I used an AI agent interactively.
• I am an agent or I got an agent to do the work autonomously.

Checklist

• I have performed a self-review of my own code
• I have added tests to cover my changes
• I have considered splitting this into smaller pull requests.