Remaining physical left/right offsets break RTL in several components

[czarandy]

Problem

Most of the library uses logical properties and _rtl mirroring, but an audit found remaining physical left/right offsets that misplace elements under dir="rtl":

• src/components/CodeBlock/CodeBlock.recipe.ts:95 — copy button pinned right: '3'
• src/components/Thumbnail/Thumbnail.recipe.ts:63 — overlay pinned right: '1'
• src/components/Avatar/Avatar.tsx:220 — status dot positioned with physical right
• src/components/Calendar/Calendar.recipe.ts:172,182 — range-endpoint pill caps use physical left/right, so rounded caps land on the wrong ends in RTL
• src/components/Lightbox/Lightbox.recipe.ts:140-141 — prev/next nav buttons positioned physically (their icons already mirror via LogicalChevron*, so icon and position disagree)
• src/components/TagsInput/TagsInput.tsx:655 — left: 'anchor(start)'

(Symmetric left:0; right:0 pairs elsewhere are fine and out of scope. TreeView's RTL problems are tracked separately.)

Expected

These elements mirror correctly under dir="rtl", consistent with the rest of the library.

Suggested fix

Migrate each to logical equivalents (insetInlineEnd, insetInlineStart, logical border radii for the Calendar pills). Verify with RTL Storybook examples for each affected component.