MDL-44777 atto_equation: More consistent width of buttons

lib/editor/atto/plugins/equation/styles.css

@@ -10,7 +10,8 @@
 }
 
 .atto_equation_library button {
-    margin: 4px;
+    margin: 0.25%;
+    min-width: 12%;
 }
 
 #page-admin-setting-atto_equation_settings .form-defaultinfo {

lib/editor/atto/plugins/equation/yui/build/moodle-atto_equation-button/moodle-atto_equation-button-debug.js

@@ -145,7 +145,8 @@ Y.namespace('M.atto_equation').Button = Y.Base.create('button', Y.M.editor_atto.
 
         var dialogue = this.getDialogue({
             headerContent: M.util.get_string('pluginname', COMPONENTNAME),
-            focusAfterHide: true
+            focusAfterHide: true,
+            width: 600
         });
 
         var content = this._getDialogueContent();

lib/editor/atto/plugins/equation/yui/build/moodle-atto_equation-button/moodle-atto_equation-button.js

@@ -145,7 +145,8 @@ Y.namespace('M.atto_equation').Button = Y.Base.create('button', Y.M.editor_atto.
 
         var dialogue = this.getDialogue({
             headerContent: M.util.get_string('pluginname', COMPONENTNAME),
-            focusAfterHide: true
+            focusAfterHide: true,
+            width: 600
         });
 
         var content = this._getDialogueContent();

lib/editor/atto/plugins/equation/yui/src/button/js/button.js

@@ -143,7 +143,8 @@ Y.namespace('M.atto_equation').Button = Y.Base.create('button', Y.M.editor_atto.
 
         var dialogue = this.getDialogue({
             headerContent: M.util.get_string('pluginname', COMPONENTNAME),
-            focusAfterHide: true
+            focusAfterHide: true,
+            width: 600
         });
 
         var content = this._getDialogueContent();