docs: update OSR max FPS number (#26805)

docs/api/web-contents.md

@@ -1871,7 +1871,7 @@ Returns `Boolean` - If *offscreen rendering* is enabled returns whether it is cu
 * `fps` Integer
 
 If *offscreen rendering* is enabled sets the frame rate to the specified number.
-Only values between 1 and 60 are accepted.
+Only values between 1 and 240 are accepted.
 
 #### `contents.getFrameRate()`
 
@@ -1969,7 +1969,7 @@ The zoom factor is the zoom percent divided by 100, so 300% = 3.0.
 #### `contents.frameRate`
 
 An `Integer` property that sets the frame rate of the web contents to the specified number.
-Only values between 1 and 60 are accepted.
+Only values between 1 and 240 are accepted.
 
 Only applicable if *offscreen rendering* is enabled.
 

docs/tutorial/offscreen-rendering.md

@@ -13,7 +13,7 @@ project.
 * There are two rendering modes that can be used (see the section below) and only
 the dirty area is passed to the `paint` event to be more efficient.
 * You can stop/continue the rendering as well as set the frame rate.
-* The maximum frame rate is 60 because greater values bring only performance
+* The maximum frame rate is 240 because greater values bring only performance
 losses with no benefits.
 * When nothing is happening on a webpage, no frames are generated.
 * An offscreen window is always created as a