MainWindow: Add basic shortcut.

src/view/ui/MainWindow.ui

@@ -34,7 +34,7 @@
    <bool>true</bool>
   </property>
   <property name="windowTitle">
-   <string>PAMHYR.2</string>
+   <string>PAMHYR</string>
   </property>
   <property name="windowIcon">
    <iconset>
@@ -319,6 +319,9 @@
      <bold>true</bold>
     </font>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+N</string>
+   </property>
   </action>
   <action name="actionOuvrir_une_tude">
    <property name="icon">
@@ -333,6 +336,9 @@
    <property name="text">
     <string>Nouvelle étude RubarBE</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+R</string>
+   </property>
   </action>
   <action name="actionOuvrir_une_tude_2">
    <property name="icon">
@@ -343,6 +349,9 @@
    <property name="text">
     <string>Ouvrir une étude</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+O</string>
+   </property>
   </action>
   <action name="actionImporter_un_jeu_de_donn_es_MAGE">
    <property name="text">
@@ -385,6 +394,9 @@
    <property name="text">
     <string>Enregistrer</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+S</string>
+   </property>
   </action>
   <action name="actionEnregistrer_sous">
    <property name="icon">
@@ -394,6 +406,9 @@
    <property name="text">
     <string>Enregistrer sous ...</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+Shift+S</string>
+   </property>
   </action>
   <action name="actionArchiver">
    <property name="text">
@@ -413,6 +428,9 @@
    <property name="text">
     <string>Quitter</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+F4</string>
+   </property>
   </action>
   <action name="actionEditer_le_r_seau">
    <property name="text">
@@ -731,6 +749,9 @@
    <property name="toolTip">
     <string>Lancer le solveur pour réaliser une simulation</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+X</string>
+   </property>
   </action>
   <action name="actioninterrompt_simulation_en_cours">
    <property name="icon">
@@ -743,6 +764,9 @@
    <property name="toolTip">
     <string>Interrompt la simulation en cours</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+C</string>
+   </property>
   </action>
   <action name="actionlancer_mailleur_externe">
    <property name="icon">