fix(MdSelect): prevent overflowing arrow icon (#1373)

* fix(MdField): remove width for input, textarea

* fix(MdSelect): prevent overflowing icon in layout with size

Author: Samuell1

src/components/MdField/MdField.vue

@@ -174,7 +174,6 @@
 
     .md-input,
     .md-textarea {
-      width: 100%;
       height: $md-input-height;
       padding: 0;
       display: block;

src/components/MdField/MdSelect/MdSelect.vue

@@ -278,6 +278,7 @@
   .md-menu.md-select {
     display: flex;
     flex: 1;
+    overflow: auto;
 
     &:not(.md-disabled) {
       .md-input,
@@ -289,6 +290,7 @@
 
     .md-input {
       flex: 1;
+      min-width: 0;
     }
 
     select,