Update environment creation

[callmevladik]

This task involves making enhancements to the Create Environment dialog to improve user input validation and the initial user experience. The specific requirements are as follows:

1. Input Validation: The dialog must enforce validation checks to ensure that the user provides values for essential fields. The mandatory fields are:

Environment Name (must not exceed 10 symbols)
Description

These fields should not be left blank, and appropriate error messages should be displayed if the validation fails. Additionally, the Environment Name should be limited to a maximum of 10 symbols.

2. Default Pipeline Template Selections: Automatically set the default selections for the pipeline templates to enhance the user setup experience.

Set the 'Deploy Pipeline template' dropdown to automatically select the first item in the list as its default value.
Similarly, set the 'Clean Pipeline template' dropdown to select the first item in the list by default.
Acceptance Criteria:
The Create Environment dialog must validate that both the Environment Name and Description fields are filled out by the user. If not, display a relevant error message prompting the user to provide the missing information.
The Environment Name field must be validated to ensure it does not exceed 10 symbols. If it does, display a relevant error message.
Upon opening the Create Environment dialog, the 'Deploy Pipeline template' and 'Clean Pipeline template' dropdowns should have their first items selected by default.
The changes should not affect the existing functionality outside of the specified enhancements.
Implementation Plan:
Update the form validation logic to include checks for the Environment Name and Description fields. Ensure the Environment Name does not exceed 10 symbols.
Modify the initialization logic for the Create Environment dialog to set the default selections for the 'Deploy Pipeline template' and 'Clean Pipeline template' dropdowns.
Conduct thorough testing to ensure the validation works as expected and the default selections do not interfere with the user's ability to choose different options if desired.