Clean up some companion object usages

app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/ExtensionTrustDialog.kt

@@ -33,13 +33,11 @@ class ExtensionTrustDialog<T>(bundle: Bundle? = null) : DialogController(bundle)
             .create()
     }
 
-    private companion object {
-        const val SIGNATURE_KEY = "signature_key"
-        const val PKGNAME_KEY = "pkgname_key"
-    }
-
     interface Listener {
         fun trustSignature(signatureHash: String)
         fun uninstallExtension(pkgName: String)
     }
 }
+
+private const val SIGNATURE_KEY = "signature_key"
+private const val PKGNAME_KEY = "pkgname_key"

app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/ExtensionDetailsController.kt

@@ -235,10 +235,7 @@ class ExtensionDetailsController(bundle: Bundle? = null) :
         activity!!.theme.resolveAttribute(R.attr.preferenceTheme, tv, true)
         return ContextThemeWrapper(activity, tv.resourceId)
     }
-
-    private companion object {
-        const val PKGNAME_KEY = "pkg_name"
-
-        private const val URL_EXTENSION_COMMITS = "https://github.com/tachiyomiorg/tachiyomi-extensions/commits/master"
-    }
 }
+
+private const val PKGNAME_KEY = "pkg_name"
+private const val URL_EXTENSION_COMMITS = "https://github.com/tachiyomiorg/tachiyomi-extensions/commits/master"

app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/SourcePreferencesController.kt

@@ -167,9 +167,7 @@ class SourcePreferencesController(bundle: Bundle? = null) :
         // [key] isn't useful since there may be duplicates
         return preferenceScreen!!.getPreference(lastOpenPreferencePosition!!) as T
     }
-
-    private companion object {
-        const val SOURCE_ID = "source_id"
-        const val LASTOPENPREFERENCE_KEY = "last_open_preference"
-    }
 }
+
+private const val SOURCE_ID = "source_id"
+private const val LASTOPENPREFERENCE_KEY = "last_open_preference"

app/src/main/java/eu/kanade/tachiyomi/ui/browse/migration/search/SourceSearchController.kt

@@ -37,8 +37,6 @@ class SourceSearchController(
     override fun onItemLongClick(position: Int) {
         view?.let { super.onItemClick(it, position) }
     }
-
-    private companion object {
-        const val MANGA_KEY = "oldManga"
-    }
 }
+
+private const val MANGA_KEY = "oldManga"

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/globalsearch/GlobalSearchAdapter.kt

@@ -74,8 +74,6 @@ class GlobalSearchAdapter(val controller: GlobalSearchController) :
     interface OnTitleClickListener {
         fun onTitleClick(source: CatalogueSource)
     }
-
-    private companion object {
-        const val HOLDER_BUNDLE_KEY = "holder_bundle"
-    }
 }
+
+private const val HOLDER_BUNDLE_KEY = "holder_bundle"