refactor(@angular-devkit/schematics): add consistent spacing and ordering

[russelporosky]

PR Checklist

Please check to confirm your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular-cli/blob/main/CONTRIBUTING.md#-commit-message-guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Schematics have an inconsistent output style. Some include a blank line between system and local imports, some have blank lines inside classes (including empty classes), the compileComponents() call in tests is sometimes inline and sometimes not, the spacing within <%... %> tags is widely variable, closing and opening tags are occasionally combined, and component properties are randomly ordered.

What is the new behavior?

This PR homogenizes code style within the templates to be more predictable and consistent. All <%... %> usages are consistent, closing braces are not combined with a new statement (so <% } if () { %> has become <% } %><% if () { %>), spacing has been applied consistently around if and else statements and their braces, component properties are alphabetized, blank lines within classes and between imports have been removed, an empty constructor has been removed, and .compileComponents() is the same across spec files.

Does this PR introduce a breaking change?

• Yes
• No

No tests required updating and no new tests are required.

Other information

This is a simple quality of life update so the schematic outputs look consistent - all imports are in a single block instead of some having blank lines and others not, classes follow the style guide by not having blank lines at the beginning and end and not having empty constructors, test files all use compileComponents() the same way, etc.

[gemini-code-assist]

Code Review

This pull request standardizes the formatting and property ordering across various Angular schematic templates. Key changes include reordering @component decorator properties for consistency, removing unnecessary empty lines and constructors, and ensuring consistent spacing within template tags. A critical issue was identified where missing trailing commas in the reordered component properties would result in syntax errors in the generated code.