Fix some chars positions in rebootlyon2020

In the long run, positions should become skins dependent since some
chars alts can't be framed identically (case in point : Bowser Jr).

lokrez/templates/rebootlyon2020/characters_corrections.j2

@@ -2,7 +2,7 @@
     "banjo & kazooie": (30, -18),
     "bayonetta": (-28, -16),
     "bowser": (10, -30),
-    "bowser jr": (30, -10),
+    "bowser jr": (40, -16),
     "byleth": (-15, -5),
     "captain falcon": (13, 0),
     "charizard": (23, -22),
@@ -27,7 +27,7 @@
     "inkling": (20,-10),
     "isabelle": (40, -20),
     "ivysaur": (20, -33),
-    "jigglypuff": (20, -31),
+    "jigglypuff": (30, -15),
     "joker": (0, -18),
     "ken": (20, -10),
     "king dedede": (20, -10),
@@ -46,7 +46,7 @@
     "mewtwo": (10, -16),
     "min min": (10, -23),
     "mr game and watch": (26, -13),
-    "ness": (28, -10),
+    "ness": (38, -10),
     "olimar": (20, -27),
     "pacman": (34, -13),
     "palutena": (-20, -20),