[strings] Correct plural forms for miles and feet in be, ru, uk

Signed-off-by: Alexander Borsuk <me@alex.bio>

data/strings/strings.txt

@@ -14384,7 +14384,9 @@
     tags = android,ios
     en = mi
     ar = ميل
-    be = міля
+    be:few = мілі
+    be:one = міля
+    be:other = міляў
     bg = ми
     ca = mi
     cs = mil
@@ -14408,12 +14410,16 @@
     pt = mi
     pt-BR = mi
     ro = mi
-    ru = ми
+    ru:few = мили
+    ru:one = миля
+    ru:other = миль
     sk = mi
     sv = mile
     th = ไมล์
     tr = mil
-    uk = ми
+    uk:few = милі
+    uk:one = миля
+    uk:other = миль
     vi = dặm
     zh-Hans = 英里
     zh-Hant = 英哩
@@ -14423,7 +14429,9 @@
     tags = android,ios
     en = ft
     ar = قدم
-    be = фут
+    be:one = фут
+    be:few = фута
+    be:other = футаў
     bg = фут
     ca = ft
     cs = stopa
@@ -14445,12 +14453,16 @@
     pl = ft
     pt = ft
     pt-BR = ft
-    ru = фут
+    ru:one = фут
+    ru:few = фута
+    ru:other = футов
     sk = stopa
     sv = fot
     th = ฟุต
     tr = fit
-    uk = фут
+    uk:one = фут
+    uk:few = фути
+    uk:other = футів
     vi = ft
     zh-Hans = 英尺
     zh-Hant = 英尺