[strings] Fix capitalization in English

fixing initial ones is especially useful as new contributors will see them when checking preferred style
maybe script checking all would be nice

note that Capital Letter For Every Word may be preferred for English but would be silly for some other languages, like Polish

Signed-off-by: Mateusz Konieczny <matkoniecz@gmail.com>

data/strings/types_strings.txt

@@ -24,7 +24,7 @@
     zh-Hant = 纜車要素
 
   [type.aerialway.cable_car]
-    en = Cable car
+    en = Cable Car
     ar = تلفريك
     de = Pendelbahn
     el = Τελεφερίκ
@@ -48,7 +48,7 @@
     zh-Hant = 纜車
 
   [type.aerialway.chair_lift]
-    en = Chair lift
+    en = Chair Lift
     de = Sessellift
     el = Τελεφερίκ
     es = Telesilla
@@ -70,7 +70,7 @@
     zh-Hans = 登山吊椅
 
   [type.aerialway.drag_lift]
-    en = Drag lift
+    en = Drag Lift
     de = Schlepplift
     el = Τελεφερίκ
     es = Telesquí
@@ -116,7 +116,7 @@
     zh-Hant = 循環式索道
 
   [type.aerialway.mixed_lift]
-    en = Mixed lift
+    en = Mixed Lift
     de = Kombibahn
     el = Τελεφερίκ
     es = Telecabina/telesilla