feat: enable verbatimModuleSyntax in TypeScript config (#5533)

## Summary
- Enable `verbatimModuleSyntax` compiler option in TypeScript
configuration
- Update all type imports to use explicit `import type` syntax
- This change will Improve tree-shaking and bundler compatibility

## Motivation
The `verbatimModuleSyntax` option ensures that type-only imports are
explicitly marked with the `type` keyword. This:
- Makes import/export intentions clearer
- Improves tree-shaking by helping bundlers identify what can be safely
removed
- Ensures better compatibility with modern bundlers
- Follows TypeScript best practices for module syntax

## Changes
- Added `"verbatimModuleSyntax": true` to `tsconfig.json`
- Updated another 48+ files to use explicit `import type` syntax for
type-only imports
- No functional changes, only import/export syntax improvements

## Test Plan
- [x] TypeScript compilation passes
- [x] Build completes successfully  
- [x] Tests pass
- [ ] No runtime behavior changes

🤖 Generated with [Claude Code](https://claude.ai/code)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5533-feat-enable-verbatimModuleSyntax-in-TypeScript-config-26d6d73d36508190b424ef9b379b5130)
by [Unito](https://www.unito.io)

src/scripts/ui/components/button.ts

@@ -1,10 +1,10 @@
-import { Settings } from '@/schemas/apiSchema'
+import { type Settings } from '@/schemas/apiSchema'
 import type { ComfyApp } from '@/scripts/app'
 
 import type { ComfyComponent } from '.'
 import { $el } from '../../ui'
 import { prop } from '../../utils'
-import { ClassList, applyClasses, toggleElement } from '../utils'
+import { type ClassList, applyClasses, toggleElement } from '../utils'
 import type { ComfyPopup } from './popup'
 
 type ComfyButtonProps = {

src/scripts/ui/components/popup.ts

@@ -1,6 +1,6 @@
 import { $el } from '../../ui'
 import { prop } from '../../utils'
-import { ClassList, applyClasses } from '../utils'
+import { type ClassList, applyClasses } from '../utils'
 
 export class ComfyPopup extends EventTarget {
   element = $el('div.comfyui-popup')