Add Allow Software-Decoded Formats playback setting

Lets the auto stream selector pick formats whose codec isn't hardware
decoded on the current device. Defaults off; when on, 4K VP9/AV1 can be
auto-selected on Apple TV models without those decoders. Software-decoded
streams also move into the Recommended section so the selection stays
visible without enabling advanced stream details.

Yattee/Localizable.xcstrings

@@ -12101,6 +12101,26 @@
         }
       }
     },
+    "settings.playback.quality.allowSoftwareDecoded" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Allow Software-Decoded Formats"
+          }
+        }
+      }
+    },
+    "settings.playback.quality.allowSoftwareDecoded.footer" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Lets the player auto-select formats that aren't hardware decoded on this device. Playback may stutter on weaker devices."
+          }
+        }
+      }
+    },
     "settings.playback.quality.best" : {
       "localizations" : {
         "en" : {
@@ -18047,4 +18067,4 @@
     }
   },
   "version" : "1.0"
-}
+}