Sprint 3: Finding parts

What's Changed

• docs: move non-builder categories to Phase 2 in the PRD by @romulojr-dev in #41
• feat: grow the seed catalog to 150 parts by @romulojr-dev in #42
• feat: add common filters (brand, price, in stock) to category pages by @romulojr-dev in #43
• fix: stop the key warning in ListingResults on slow loads by @romulojr-dev in #45
• feat: add spec filters per category by @romulojr-dev in #46
• feat: keyword search by @romulojr-dev in #47
• feat: related products on the product page by @romulojr-dev in #48
• feat: home page by @romulojr-dev in #49
• feat: SEO for catalog pages by @romulojr-dev in #50

Full Changelog: v0.2.0...v0.3.0