chore: move Frame to Frame.ts (#8806)

Author: jrandolf-2

src/common/ElementHandle.ts

@@ -2,7 +2,8 @@ import {Protocol} from 'devtools-protocol';
 import {assert} from '../util/assert.js';
 import {CDPSession} from './Connection.js';
 import {ExecutionContext} from './ExecutionContext.js';
-import {Frame, FrameManager} from './FrameManager.js';
+import {FrameManager} from './FrameManager.js';
+import {Frame} from './Frame.js';
 import {
   MAIN_WORLD,
   PUPPETEER_WORLD,

src/common/ExecutionContext.ts

@@ -17,7 +17,7 @@
 import {Protocol} from 'devtools-protocol';
 import {assert} from '../util/assert.js';
 import {CDPSession} from './Connection.js';
-import {Frame} from './FrameManager.js';
+import {Frame} from './Frame.js';
 import {IsolatedWorld} from './IsolatedWorld.js';
 import {JSHandle} from './JSHandle.js';
 import {EvaluateFunc, HandleFor} from './types.js';