Merge pull request #145 from Cocolalilal/LastChat_dev

Localize UI strings, a11y labels, and context errors

Merge branch 'LastChat_dev' of https://github.com/Cocolalilal/LastChat into LastChat_dev

Text selection actions: per-action model support

Merge pull request #144 from Cocolalilal/LastChat

Update images in README for version 1.4.0

Add files via upload

Localize UI strings and add message version selection

Add RTL/Bidi support and localization

Staggered stats reveal & crossfade; storage padding

Add chat attachment DB and storage features

Enhance heatmap UI, settings text, adjust padding

Introduce motion policy and revamp menu UI

Revise AI model names in README.md

Add OCR activity, JSON recovery, sandbox support