[HOTFIX] Do not de-activate comments just because strict moderation is enabled.

[ballPointPenguin]

When strict moderation is enabled, new comments were being automatically flagged as inactive resulting in false negative messaging regarding the spam/toxicity filter.

However we already use the comment.mod value to track comments which need moderation. There is no need to mark them inactive unless an actual filter is triggered.

Also in this PR is the help text improvements #1886
and java version updates for 'math'.

Result:

Strict Moderation ON:

• all user comments will appear in the moderation tab and must be approved
• only comments which were flagged by an actual filter will show a warning message
• any comment, flagged or not, can be approved and shown to voters

Strict Moderation OFF:

• user comments that are flagged as spam/toxic will not be shown to voters unless approved
• other user comments will be shown to voters, unless/until they are rejected by moderator

Moderation can be toggled ON/OFF with the expected effect:

• Unmoderated comments will be either hidden or shown to voters accordingly

TODO (future PR)

[ ] Cypress tests for the above states
[ ] Adjust the warning in client-admin depending on if Jigsaw is active for that deployment or not