chore(mods/pride_flags): Consistency between furniture and item pride flags

[RobbieNeko]

Checklist

Required

• I wrote the PR title in conventional commit format.
• I ran the code formatter.
• I linked any relevant issues using github keyword syntax so it can be closed automatically.
• I have committed my changes to new branch that isn't main so it won't cause conflict when updating main branch later.

Purpose of change

As Chaosvolt mentioned in the original PR, the descriptions for the hoisted pride flags were a bit basic. I felt that it'd be a good idea to just use the already-existing explanations of the meaning behind each flag, especially as it makes them more consistent.

Describe the solution

• Adds the flavor to the furniture descriptions from the item-based flags for consistency and less basic-ness
• Also makes a couple stylistic changes to the item flags' descriptions while I had noticed them

Describe alternatives you've considered

• Further strip the explanation of the meaning behind the gradient from the autistic pride flag

I think it's kinda just restating the fact that it's a pride flag, and is ultimately a nothing-sentence, but it felt a little more valid than the acknowledgement of color theory haha

Testing

Just text changes, worst that'll happen is it gets mad at me for somehow missing a double-space after punctuation.

Additional context

Sorry, probably could've just slotted this into Chaos' PR as suggestions if I'd been a bit quicker on it. Then again, I suppose it does no harm to have it be an extra PR either.