Update react code

Author: rolandgeider

wger/core/static/react/locales/en/translation.json

@@ -23,7 +23,12 @@
   "value": "Value",
   "unit": "Unit",
   "alsoSearchEnglish": "Also search for names in English",
+  "copyToClipboard": "Copy to clipboard",
   "exercises": {
+    "replacements": "Replacements",
+    "replacementsInfoText": "Optionally, you can also select an exercise that should replace this one (e.g. because it was submitted twice, or similar). This will replace the exercise in routines as well as training logs, instead of just deleting it. These changes will also propagate to any instance that syncs the exercises from this one.",
+    "replacementsSearch": "Search for an exercise or copy and paste a known ID into the field and click on the \"load\" button.",
+    "noReplacementSelected": " No exercise selected for replacement",
     "contributeExercise": "Contribute an exercise",
     "step1HeaderBasics": "Basics in English",
     "variations": "Variations",
@@ -53,6 +58,7 @@
     "deleteExerciseBody": "Do you want to delete the exercise \"{{name}}\"? You can either delete the current {{language}} translation or the complete exercise with all translations, images, etc.",
     "deleteTranslation": "Delete translation",
     "deleteExerciseFull": "Delete full exercise",
+    "deleteExerciseReplace": "Delete and replace",
     "exercises": "Exercises",
     "changeExerciseLanguage": "Change this exercise's language",
     "noEquipment": "No equipment",