Have the big button submit the form

Instead of doing nothing at all

src/main/index.html

@@ -59,7 +59,7 @@
                 <input id="abbreviation" type="text" autofocus />
                 <small id="abbreviation-hint" data-hint-for="abbreviation"></small>
 
-                <button id="debreviate" type="button">Debreviate</button>
+                <button id="debreviate" type="submit">Debreviate</button>
             </form>
 
             <label for="debreviations">Debreviations</label>