Replacing require.nil in app layer (#16905)

* Replacing require.nil in app layer

* Fixing some tests

* Fixing tests

* Reverting the error correction, defering it for another PR

* Fixing golangci-lint errors

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

app/plugin_install_test.go

@@ -128,7 +128,7 @@ func TestInstallPluginLocally(t *testing.T) {
 		pluginsEnvironment := th.App.GetPluginsEnvironment()
 		require.NotNil(t, pluginsEnvironment)
 		bundleInfos, err := pluginsEnvironment.Available()
-		require.Nil(t, err)
+		require.NoError(t, err)
 
 		for _, bundleInfo := range bundleInfos {
 			err := th.App.removePluginLocally(bundleInfo.Manifest.Id)
@@ -140,7 +140,7 @@ func TestInstallPluginLocally(t *testing.T) {
 		pluginsEnvironment := th.App.GetPluginsEnvironment()
 		require.NotNil(t, pluginsEnvironment)
 		bundleInfos, err := pluginsEnvironment.Available()
-		require.Nil(t, err)
+		require.NoError(t, err)
 
 		sort.Sort(byBundleInfoId(bundleInfos))
 
@@ -281,7 +281,7 @@ func TestInstallPluginAlreadyActive(t *testing.T) {
 	pluginsEnvironment := th.App.GetPluginsEnvironment()
 	require.NotNil(t, pluginsEnvironment)
 	bundleInfos, err := pluginsEnvironment.Available()
-	require.Nil(t, err)
+	require.NoError(t, err)
 	require.NotEmpty(t, bundleInfos)
 	for _, bundleInfo := range bundleInfos {
 		if bundleInfo.Manifest.Id == actualManifest.Id {