UI Editings added (#29)

* SpotiftMessage feature added.

* SpotiftMessage document added.

* version upgrade v0.5.0

* props was dynamic.theme and view props added.

* LocationMessage apiKey prop added.

* tabs convert spaces

* the unnecessary expression was deleted.

* MessageBox Margin Values Has Been Edited

* Messagebox Margin Values Has Been Edited

* Dropdown  and MessageBox Css Editings

* dropdown and messagebox component's style editings have been done

* dropdown and messagebox component's style editings have been done

Author: mlelyakan

src/Dropdown/Dropdown.css

@@ -4,16 +4,16 @@
 .rce-dropdown {
     min-width: 100%;
     box-sizing: border-box;
-    padding: 5px 10px;
-    background: #f5f5f5;
+    padding: 8px 15px;
+    background: #fff;
     border-radius: 5px;
     display: none;
     flex-direction: row;
     align-items: center;
     justify-content: center;
     transform: scale(0);
     position: absolute;
-    box-shadow: 0px 5px 5px -5px rgba(0, 0, 0, 0.75);
+    box-shadow: 0px 0px 5px 0px rgba(163, 163, 163, 1);
     transform-origin: left top;
     z-index: 99999;
 }
@@ -99,9 +99,9 @@
 .rce-dropdown ul li {
     white-space: nowrap;
     color: #767676;
-    padding: 5px;
+    padding: 8px;
     cursor: pointer;
-    font-size: 14px;
+    font-size: 16px;
     width: 100%;
     border-bottom: 1px solid #e9e9e9;
     box-sizing: border-box;

src/MessageBox/MessageBox.css

@@ -56,10 +56,10 @@
     border-top-left-radius: 0px;
     margin-left: 20px;
     margin-right: 5px;
-    margin-top: 5px;
+    margin-top: 3px;
     display: flex;
     flex-direction: column;
-    margin-bottom: 5px;
+    margin-bottom: 3px;
     padding: 6px 9px 8px 9px;
     float: left;
     min-width: 140px;