add bottom margin to navigation buttons of room state explorer

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/dialogs/DevtoolsDialog.js

@@ -188,14 +188,19 @@ class RoomStateExplorer extends React.Component {
                     onClickFn = this.onViewSourceClick(stateGroup[stateKeys[0]]);
                 }
 
-                rows.push(<button key={evType} onClick={onClickFn}>{ evType }</button>);
+                rows.push(<button className="mx_DevTools_RoomStateExplorer_button" key={evType} onClick={onClickFn}>
+                    { evType }
+                </button>);
             });
         } else {
             const evType = this.state.eventType;
             const stateGroup = this.roomStateEvents[evType];
             Object.keys(stateGroup).forEach((stateKey) => {
                 const ev = stateGroup[stateKey];
-                rows.push(<button key={stateKey} onClick={this.onViewSourceClick(ev)}>{stateKey}</button>);
+                rows.push(<button className="mx_DevTools_RoomStateExplorer_button" key={stateKey}
+                                  onClick={this.onViewSourceClick(ev)}>
+                    { stateKey }
+                </button>);
             });
         }
 

src/skins/vector/css/_components.scss

@@ -74,6 +74,7 @@
 @import "./vector-web/views/context_menus/_MessageContextMenu.scss";
 @import "./vector-web/views/context_menus/_RoomTileContextMenu.scss";
 @import "./vector-web/views/dialogs/_ChangelogDialog.scss";
+@import "./vector-web/views/dialogs/_DevtoolsDialog.scss";
 @import "./vector-web/views/dialogs/_SetEmailDialog.scss";
 @import "./vector-web/views/dialogs/_SetPasswordDialog.scss";
 @import "./vector-web/views/directory/_NetworkDropdown.scss";

src/skins/vector/css/vector-web/views/dialogs/_DevtoolsDialog.scss

@@ -0,0 +1,19 @@
+/*
+Copyright 2017 Michael Telatynski <7t3chguy@gmail.com>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_DevTools_RoomStateExplorer_button {
+    margin-bottom: 10px;
+}