Morphe patch bundle 1.4.121

Boost for Reddit

Changes

• Show an "End of feed" row with a Refresh button when a feed has no more posts, instead of silently stopping.

User impact

Feeds that Reddit ends early, like Home sorted by Best and Popular, now say so instead of looking broken.

Issue: #244.

Validation

• Final local release gate passed before publish.
• README SHA is aligned to the published MPP.
• Release tag: morphe-patches-121.
• Release asset: patches-1.4.121.mpp.
• Signature asset: patches-1.4.121.mpp.asc.
• MPP SHA256: 46b59c618d03f319ee0f0b1ed2af6f64d92552dbf1e56fbdc296a9b27b050c8a.