chore: switched drivers filter from text to select input (TrainsView); updated inputs clear buttons

src/locales/en.json

@@ -157,9 +157,8 @@
     "sort-title": "SORT BY:",
     "filter-title": "FILTER BY:",
     "search-title": "SEARCH:",
-    "search-train-no": "Train no. / #",
-    "search-train": "Train no.",
-    "search-driver": "Driver name",
+    "search-train": "Train no. / #",
+    "search-driver": "Choose a driver...",
     "search-dispatcher": "Dispatcher name",
     "search-station": "Scenery name / #",
     "search-author": "Timetable author name",

src/locales/pl.json

@@ -154,9 +154,8 @@
     "sort-title": "SORTUJ WG:",
     "filter-title": "FILTRUJ WG:",
     "search-title": "SZUKAJ:",
-    "search-train-no": "Nr pociągu",
     "search-train": "Nr pociągu / #",
-    "search-driver": "Nick maszynisty",
+    "search-driver": "Wybierz maszynistę...",
     "search-dispatcher": "Nick dyżurnego",
     "search-station": "Nazwa scenerii / #",
     "search-author": "Nick autora rozkładu jazdy",