fix: cherry-pick main fixes into 6.6.x - #8531

Summary

Cherry-picks all non-dependency PRs from main since the 6.6.x branch was created, per the 6.6 patch checklist.

Cherry-picked PRs (chronological order):

• fix: address word-break/overflow-wrap bug #8487 — fix: address word-break/overflow-wrap bug (closes Bug - Modal - overflow-wrap migration from word-break was applied wrong #8484)
• chore(input group): add radius modifier #8483 — chore(input group): add radius modifier
• fix(table): nested table sorting #8491 — fix(table): nested table sorting (closes Bug - Table - sorting is not available for nested tables with v6.6.0 #8485)
• fix(tree-view): revert caret rotations #8490 — fix(tree-view): revert caret rotations
• fix(a11y): ignore target-size rule for WCAG 2.2 bump #8493 — fix(a11y): ignore target-size rule for WCAG 2.2 bump
• fix(tree): update tree table and DLS tree toggle icon direction #8502 — fix(tree): update tree table and DLS tree toggle icon direction
• fix: update disabled description to use text color token #8497 — fix: update disabled description to use text color token
• fix(plain actions): update tokens to vertical-plain #8495 — fix(plain actions): update tokens to vertical-plain
• fix: address bottom pagination bugs #8498 — fix: address bottom pagination bugs
• chore(primary details): fix drawer and toolbar #8509 — chore(primary details): fix drawer and toolbar
• fix(modal): footer action spacing #8526 — fix(modal): footer action spacing

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