Make getPrepackaged resilient to missing plugin icons (#18505)

Signed-off-by: Igor German <germanenak@gmail.com>

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/plugin.go

@@ -1034,7 +1034,7 @@ func getPrepackagedPlugin(pluginPath *pluginSignaturePath, pluginFile io.ReadSee
 	if manifest.IconPath != "" {
 		iconData, err := getIcon(filepath.Join(pluginDir, manifest.IconPath))
 		if err != nil {
-			return nil, "", errors.Wrapf(err, "Failed to read icon at %s", manifest.IconPath)
+			mlog.Warn("Error loading local plugin icon", mlog.String("plugin", plugin.Manifest.Id), mlog.String("icon_path", plugin.Manifest.IconPath), mlog.Err(err))
 		}
 		plugin.IconData = iconData
 	}