chore(deps): bump all dependencies to latest (#37)

Go modules:
- fyne.io/systray 1.11.0 -> 1.12.2 (drop master-pin replace directive,
  SetOnTapped/SetOnSecondaryTapped now in a tagged release)
- danielgtaylor/huma/v2 2.37.3 -> 2.38.0
- fsnotify 1.10.0 -> 1.10.1
- go-chi/chi/v5 5.2.5 -> 5.3.0
- assorted indirect bumps (golang.org/x/*, miekg/dns, echo, etc.)

Frontend (tray):
- vite ^5 -> ^8

Frontend (docs):
- @docusaurus/* 3.9.2 -> 3.10.1
- docusaurus-plugin/theme-openapi-docs 4.7.1 -> 5.0.2
- react/react-dom 19.2.3 -> 19.2.7
- typescript kept on ~5.9.3 (TS6 deprecates baseUrl, unsupported by
  the docusaurus 3.x toolchain)

CI (supersedes dependabot PRs #34, #35, #36):
- actions/configure-pages v5 -> v6
- murar8/gnome-extensions-action 0.1.0 -> 0.1.1

go vet + full test suite pass; tray and docs builds verified.

Author: jmylchreest

.github/workflows/build-release.yml

@@ -735,7 +735,7 @@ jobs:
 
       - name: Upload to EGO
         if: steps.check-changes.outputs.changed == 'true'
-        uses: murar8/gnome-extensions-action@0.1.0
+        uses: murar8/gnome-extensions-action@0.1.1
         with:
           source-dir: contrib/gnome-extension/keylightd-control@jmylchreest.github.io
           username: ${{ secrets.EGO_USERNAME }}

.github/workflows/docs.yml

@@ -61,7 +61,7 @@ jobs:
         run: npm run build
 
       - name: Setup Pages
-        uses: actions/configure-pages@v5
+        uses: actions/configure-pages@v6
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v5