Replace FeatureFlags.ShowMediaUploadingFlow by FeatureFlags.LocationSharing because it has more chance to be disabled.

I do not want to remove all our feature flags...

libraries/featureflag/api/src/main/kotlin/io/element/android/libraries/featureflag/api/FeatureFlags.kt

@@ -22,8 +22,8 @@ enum class FeatureFlags(
     override val description: String? = null,
     override val defaultValue: Boolean = true
 ) : Feature {
-    ShowMediaUploadingFlow(
-        key = "feature.showmediauploadingflow",
-        title = "Show media uploading flow",
+    LocationSharing(
+        key = "feature.locationsharing",
+        title = "Allow user to share location",
     )
 }