conf: restore the clink's "gray text" auto-suggestions display

The [`autosuggest.inline` feature](https://chrisant996.github.io/clink/clink.html#inline-suggestions) was disabled by default from the config in **a breaking change** from https://github.com/chrisant996/clink/releases/tag/v1.9.20 and later

.github/workflows/build.yml

@@ -242,7 +242,7 @@ jobs:
         $summary | Add-Content -Path $env:GITHUB_STEP_SUMMARY -Encoding utf8
 
     - name: Create Release
-      uses: softprops/action-gh-release@v2
+      uses: softprops/action-gh-release@v3
       with:
         files: |
           build/cmder.zip

vendor/clink_settings.default

@@ -30,3 +30,7 @@ cmd.auto_answer = answer_yes
 # name: Doskey completions
 # type: color
 color.doskey = yellow
+
+# name: Show a suggestion in a muted color
+# type: boolean
+autosuggest.inline