fix: add English translation for rugoFond titles

Refs #657

src/app/calculators/rugofond/en.json

@@ -12,7 +12,7 @@
     "select_passtype": "Pass type",
     "Q": "Flow",
     "If": "Slope",
-    "a": "Stickler correction factor",
+    "a": "Strickler correction factor",
     "ZF1": "Upstream ramp bottom elevation",
     "ZD1": "Lower upstream ramp bottom elevation",
     "ZR1": "Upper upstream ramp bottom elevation",

src/locale/messages.en.json

@@ -516,7 +516,8 @@
     "INFO_PARALLELSTRUCTURE_TITRE_COURT": "// structures",
     "INFO_PARALLELSTRUCTURE_TITRE": "Parallel structures",
     "INFO_PAR_TITRE": "Baffle fishway: setup",
-    "INFO_RUGOFOND_TITRE": "toto",
+    "INFO_RUGOFOND_TITRE": "Bed roughness fishpasses",
+    "INFO_RUGOFOND_TITRE_COURT": "Bed roughness",
     "INFO_PAR_DESCRIPTION": "planes Denil Fatou superactive mixte chevrons canoe",
     "INFO_PAR_TITRE_COURT": "HF: setup",
     "INFO_PARSIMULATION_TITRE": "Baffle fishway: simulation",