ECMS-6497 | [CKEditor] [Insert Image] Missing "Upload file" button in Co...

*Problem Analysis:*
* The upload button is not appended to the filterTypeId section whenever file type is an image.
* Fitler and upload labels are not internationalized.

*Fix Description:*
* Append upload button to filterTypeId section when the file type is an image.
* Use localized labels for filter and upload from `UserLanguage`.