BUG - Fix translation texts for Add Data Source and SAPUI5 Model generator title and subtitle

[mmilko01]

Description

• The current title and subtitle of the Add Data Source and SAPUI5 Model are incorrectly spelled - Add Datasource and SAPUI5 Model, should be changed to Add Data Source and SAPUI5 Model
• Validation text for duplicate data source and model, should be enhanced as it is currently incorrect after latest Cloud Foundry related changes

Steps to Reproduce

Steps to reproduce the behavior:

1. Create an Adaptation Project
2. Open generator Add Data Source and SAPUI5 Model
3. See the title and subtitle are incorrectly spelled as Add Datasource and SAPUI5 Model

Expected results

Title and Subtitle should have correctly spelled Data Source

Actual results

Title and subtitle have incorrectly spelled Datasource

1. Create an Adaptation Project
2. Open generator Add Data Source and SAPUI5 Model
3. Create a new data source with name test.service
4. Click Finish to save the change
5. Open the generator again and try to create another data source with name test.service
6. See the validation text is not relevant to the error

Expected results

Validation text should be relevant to the error
Data Source and SAPUI5 model with the same name were already added to the project. Rename and try again.

Actual results

Current error text:
An OData annotation or service with the same name was already added to the project. Rename and try again.

Version/Components/Environment

Add any other context about the problem here
OS:

• Mac OS
• Windows
• Other

Root Cause Analysis

Problem

{describe the problem}

Fix

{describe the fix}

Why was it missed

{Some explanation why this issue might have been missed during normal development/testing cycle}

How can we avoid this

{if we don’t want to see this type of issues anymore what we should do to prevent}