Making private import methos in the app layer (#13758)

* Making private import methos in the app layer

* Making one more method private

app/import_test.go

@@ -81,42 +81,42 @@ func TestImportImportLine(t *testing.T) {
 		Type: "gibberish",
 	}
 
-	err := th.App.ImportLine(line, false)
+	err := th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with invalid type.")
 
 	// Try import line with team type but nil team.
 	line.Type = "team"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line of type team with a nil team.")
 
 	// Try import line with channel type but nil channel.
 	line.Type = "channel"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with type channel with a nil channel.")
 
 	// Try import line with user type but nil user.
 	line.Type = "user"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with type user with a nil user.")
 
 	// Try import line with post type but nil post.
 	line.Type = "post"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with type post with a nil post.")
 
 	// Try import line with direct_channel type but nil direct_channel.
 	line.Type = "direct_channel"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with type direct_channel with a nil direct_channel.")
 
 	// Try import line with direct_post type but nil direct_post.
 	line.Type = "direct_post"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with type direct_post with a nil direct_post.")
 
 	// Try import line with scheme type but nil scheme.
 	line.Type = "scheme"
-	err = th.App.ImportLine(line, false)
+	err = th.App.importLine(line, false)
 	require.NotNil(t, err, "Expected an error when importing a line with type scheme with a nil scheme.")
 }