fix bug when no mood recorded

mood_app.rb

@@ -10,8 +10,8 @@ class MoodApp < Sinatra::Base
   set :database, { adapter: 'sqlite3', database: "mood-#{ENV['RACK_ENV']}.sqlite3" }
 
   get '/' do
-    @last_mood = Mood.last
-    @mood_log = Mood.log
+    @mode = Mood.last&.mode || 'croisiere'
+    @mood_log = Mood.log || []
     erb :index
   end
 

views/index.erb

@@ -14,7 +14,7 @@
 
       showCurrent() {
         const image = this.imageTarget
-        image.src = "<%= @last_mood.mode %>.png"
+        image.src = "<%= @mode %>.png"
       }
 
     })
@@ -107,7 +107,7 @@ tbody tr td {
 </head>
 <main data-controller="mood">
   <div class="mode">
-    <img data-mood-target="image" src="<%= @last_mood.mode %>.png">
+    <img data-mood-target="image" src="<%= @mode %>.png">
   </div>
   <div class="tracker">
     <div class="info">