Spellcast v0.4.5

What's Changed

• Add Linux AppImage and .deb packaging for Spellcast by @Vanyangyang in #4
• README: How it looks walkthrough (Codex asides, early preview) by @Vanyangyang in #3
• README: Grok Build floating bubble and completion notice by @Vanyangyang in #5
• README: add hero wand animation after the title by @Vanyangyang in #6
• README: one story hero GIF after the title by @Vanyangyang in #8
• README: add Product Hunt featured badge (EN + ZH) by @Vanyangyang in #9

Full Changelog: v0.4.3...v0.4.5