docs: add missing Frame.fill.strict (#7880)

docs/src/api/class-frame.md

@@ -697,6 +697,7 @@ Value to fill for the `<input>`, `<textarea>` or `[contenteditable]` element.
 
 ### option: Frame.fill.force = %%-input-force-%%
 ### option: Frame.fill.noWaitAfter = %%-input-no-wait-after-%%
+### option: Frame.fill.strict = %%-input-strict-%%
 ### option: Frame.fill.timeout = %%-input-timeout-%%
 
 ## async method: Frame.focus

types/types.d.ts

@@ -3915,6 +3915,12 @@ export interface Frame {
      */
     noWaitAfter?: boolean;
 
+    /**
+     * When true, the call requires selector to resolve to a single element. If given selector resolves to more then one
+     * element, the call throws an exception.
+     */
+    strict?: boolean;
+
     /**
      * Maximum time in milliseconds, defaults to 30 seconds, pass `0` to disable timeout. The default value can be changed by
      * using the