Update settings window screenshots

Author: 1024jp

img/screenshots/[email protected]

@@ -103,7 +103,7 @@ <h1>CotEditor</h1>
 			</figure>
 			<figure>
 				<img src="img/screenshots/[email protected]"
-				  width="712" height="609"
+				  width="712" height="667"
 				  alt="[screenshot: settings window]"/>
 			</figure>
 		</div>

img/screenshots/[email protected]

@@ -98,7 +98,7 @@ <h1>CotEditor</h1>
 			</figure>
 			<figure>
 				<img src="img/screenshots/[email protected]"
-				  width="712" height="609"
+				  width="712" height="667"
 				  alt="[screenshot: 設定ウインドウ]"/>
 			</figure>
 		</div>

img/screenshots/[email protected]

@@ -96,7 +96,7 @@ <h1>CotEditor</h1>
 			</figure>
 			<figure>
 				<img src="img/screenshots/[email protected]"
-				  width="712" height="623"
+				  width="712" height="681"
 				  alt="[screenshot: settings window]"/>
 			</figure>
 		</div>