fix(i18n): synchronise et complète les clés FR/EN

- EN : ajoute les clés top-level NAME/NONE/ORIGIN/PROFILE/THEME/TOTEM
  utilisées par les fiches PNJ (légacy et appv2), VERMINE.skills/skill/
  specificLevel/competence/modes/traits_selector, VERMINE.add/delete/
  learning, COMBAT.Begin/Delete/End/NotStarted/TurnEnd.
- FR : ajoute VERMINE.add/delete/learning et COMBAT.Delete.
- Rareté alignée : EN rarity_1 Peu commun/Uncommon, rarity_2 Rare,
  rarity_3 Très rare/Very rare (était décalée).
- Chat cards ability/rite : UI.effects (objet) -> UI.effects.name.

lang/en.json

@@ -1,4 +1,10 @@
 {
+  "NAME": "Name",
+  "NONE": "None",
+  "ORIGIN": "Origin",
+  "PROFILE": "Profile",
+  "THEME": "Concept",
+  "TOTEM": "Totem",
   "SETTINGS": {
     "world": {
       "game_mode": {
@@ -199,9 +205,15 @@
     "unequip": "Unequip",
     "abilities": "Characteristics",
     "ability": "Characteristic",
+    "skills": "Skills",
+    "skill": "Skill",
     "skills_title": "Skills",
     "skill_title": "Skill",
     "skill_mastery": "Mastery",
+    "specificLevel": "Specific level",
+    "competence": "Skill",
+    "modes": "Game modes",
+    "traits_selector": "Trait selector",
     "bonus": "Bonus",
     "bonus_supplementary": "Supplementary bonus",
     "penalty": "Penalty",
@@ -212,6 +224,9 @@
     "techniques": "Techniques",
     "difficulty": "Difficulty",
     "help": "Help",
+    "add": "Add",
+    "delete": "Delete",
+    "learning": "Learning",
     "tooling": "Equipment",
     "quantity": "Quantity",
     "qty": "Qty",
@@ -597,8 +612,9 @@
     "prohibits": "Prohibits",
     "prohibits_placeholder": "eg: Fire, Water",
     "rarity_0": "Common",
-    "rarity_1": "Rare",
-    "rarity_2": "Very Rare",
+    "rarity_1": "Uncommon",
+    "rarity_2": "Rare",
+    "rarity_3": "Very rare",
     "reserves": "Reserves",
     "ritual": "Ritual",
     "sexes": {
@@ -1054,9 +1070,14 @@
     "female": "Feminine"
   },
   "COMBAT": {
+    "Begin": "Start Combat",
+    "Delete": "Delete",
     "Encounter": "Encounter",
+    "End": "End Combat",
     "None": "None",
-    "Round": "Round"
+    "NotStarted": "Not Started",
+    "Round": "Round",
+    "TurnEnd": "End Turn"
   },
   "SIZE_LEVELS": {
     "tiny": "Insect",