IJPL-159864, IJPL-196620: add image/webp mime type support in Vision resource handlers

(cherry picked from commit 5c6af363eb258a26e3404b7f7a56fd9f898678b3)

IJ-CR-169287

GitOrigin-RevId: 6f25219a73c2da5d47a4e36ca5564caafaee7608

platform/whatsNew/src/com/intellij/platform/whatsNew/WhatsNewRequestHandler.kt

@@ -45,6 +45,7 @@ private fun getMIMEType(extension: String): String {
     "svg" -> "image/svg+xml"
     "mp4" -> "video/mp4"
     "webm" -> "video/webm"
+    "webp" -> "image/webp"
     else -> "".also { logger.warn("Unknown file extension: '$extension' for MIME type. Falling back to '$it'.") }
   }
 }