[2201.9.0] Add the relevant new import text edits via the Create variable with type code action

[nipunayf]

Purpose

It is a mandate of a code action to generate a valid Ballerina source code. However, while the Create variable with type code action produces the correct variable type, it is unable to import the necessary modules. This is addressed via this PR.

2201.9.0 of https://github.com/ballerina-platform/ballerina-lang/pull/42574

Approach

Following a similar approach as seen in the 'Create variable' code action, the PR adjusts the logic of the 'Create variable with type' code action to utilize the same 'ImportAcceptor'.

Samples

https://github.com/ballerina-platform/ballerina-lang/assets/59343084/79cec6fe-fde6-4dd8-a495-c2181d44118c

Check List

• [x] Read the Contributing Guide
• [ ] Updated Change Log
• [ ] Checked Tooling Support (#)
• [x] Added necessary tests
  • [x] Unit Tests
  • [ ] Spec Conformance Tests
  • [ ] Integration Tests
  • [ ] Ballerina By Example Tests
• [ ] Increased Test Coverage
• [ ] Added necessary documentation
  • [ ] API documentation
  • [ ] Module documentation in Module.md files
  • [ ] Ballerina By Examples

[nipunayf]

Duplicate of https://github.com/ballerina-platform/ballerina-lang/pull/42608