Enhance install-service.sh with Java version checks and installation instructions; update Russian translations in resource packs for improved localization of item names and descriptions.

resourcepacks/PupaMLupa-Translations/assets/example_mod/lang/ru_ru.json

@@ -1,4 +1,4 @@
 {
-  "example_mod.configuration.client": "client",
-  "example_mod.configuration.example": "example"
+  "example_mod.configuration.client": "клиент",
+  "example_mod.configuration.example": "пример"
 }

resourcepacks/PupaMLupa-Translations/assets/integrated_stronghold/lang/ru_ru.json

@@ -1,11 +1,11 @@
 {
   "item.integrated_stronghold.music_disc_sight": "Пластинка",
-  "item.integrated_stronghold.music_disc_sight.desc": "Cama - sight",
+  "item.integrated_stronghold.music_disc_sight.desc": "Cama - Sight",
   "item.integrated_stronghold.music_disc_forlorn": "Пластинка",
   "item.integrated_stronghold.music_disc_forlorn.desc": "Cama - Forlorn",
-  "jukebox_song.integrated_stronghold.sight": "Cama - sight",
+  "jukebox_song.integrated_stronghold.sight": "Cama - Sight",
   "jukebox_song.integrated_stronghold.forlorn": "Cama - Forlorn",
   "item.integrated_stronghold.disc_fragment_sight": "Фрагмент пластинки",
-  "item.integrated_stronghold.disc_fragment_sight.desc": "Пластинка - sight",
-  "itemGroup.integrated_stronghold": "Integrated Stronghold"
+  "item.integrated_stronghold.disc_fragment_sight.desc": "Пластинка — Sight",
+  "itemGroup.integrated_stronghold": "Интегрированная крепость"
 }

resourcepacks/PupaMLupa-Translations/assets/simplytooltips/lang/ru_ru.json

@@ -1,5 +1,5 @@
 {
-  "simplytooltips.key.category": "Simply Tooltips",
+  "simplytooltips.key.category": "Простые подсказки",
   "key.simplytooltips.cycle_tab": "Переключить вкладку подсказки",
   "key.simplytooltips.capture_gif": "Записать GIF подсказки"
 }