fix(lang): add is loading ru translation (#5630)

Author: vitaliytv

docs/translations-needed.md

@@ -244,6 +244,7 @@ This default value is hardcoded as a default to the localize method in the SeekB
 |                         | End of dialog window.                                                               |
 |                         | {1} is loading.                                                                     |
 | cs.json (Complete)      |                                                                                     |
+| cy.json (Complete)      |                                                                                     |
 | da.json (missing 59)    | Audio Player                                                                        |
 |                         | Video Player                                                                        |
 |                         | Replay                                                                              |
@@ -941,6 +942,7 @@ This default value is hardcoded as a default to the localize method in the SeekB
 |                         | Beginning of dialog window. Escape will cancel and close the window.                |
 |                         | End of dialog window.                                                               |
 |                         | {1} is loading.                                                                     |
+| oc.json (missing 1)     | {1} is loading.                                                                     |
 | pl.json (missing 51)    | Audio Player                                                                        |
 |                         | Video Player                                                                        |
 |                         | Replay                                                                              |
@@ -1037,7 +1039,7 @@ This default value is hardcoded as a default to the localize method in the SeekB
 |                         | Beginning of dialog window. Escape will cancel and close the window.                |
 |                         | End of dialog window.                                                               |
 |                         | {1} is loading.                                                                     |
-| ru.json (missing 1)     | {1} is loading.                                                                     |
+| ru.json (Complete)      |                                                                                     |
 | sk.json (Complete)      |                                                                                     |
 | sr.json (missing 59)    | Audio Player                                                                        |
 |                         | Video Player                                                                        |

lang/ru.json

@@ -80,5 +80,6 @@
   "Done": "Готово",
   "Caption Settings Dialog": "Диалог настроек подписи",
   "Beginning of dialog window. Escape will cancel and close the window.": "Начало диалоговго окна. Кнопка Escape закроет или отменит окно",
-  "End of dialog window.": "Конец диалогового окна."
+  "End of dialog window.": "Конец диалогового окна.",
+  "{1} is loading.": "{1}  загружается."
 }