kumaui: the pin rides to 26af63c: 1c6d39e plus the agents handoff note

The pin chases kumaui's main as it moved mid-bump: 26af63c carries the
icon-index fix (1c6d39e) and an AGENTS.md note, docs only, so the baked
binaries' behavior is 1c6d39e's.

Author: Letdown2491

.github/actions/kuma-shell/action.yml

@@ -34,7 +34,7 @@ inputs:
     description: >-
       kumaui commit to build the shell from.
     required: false
-    default: 1c6d39ee35edcb7a3f5c067bc58d92e4f0a19d06
+    default: 26af63ca6eb12d5fcfc99519c909435ed9e21772
 
 runs:
   using: composite

CHANGELOG.md

@@ -79,7 +79,7 @@
   `ffmpeg-libs` pins nothing of Fedora's packages, so there is no lag
   window to guard.
 
-- **The image's kumaui pin moves to `1c6d39e`.** The shell, greeter,
+- **The image's kumaui pin moves to `26af63c`.** The shell, greeter,
   Koguma and kuma-term the image bakes pick up the 0.2.0 work since
   the old pin: the app binaries answer `--version` and are stamped
   builds with an about page, Koguma gains a keybindings modal (and its