Move to Bootstrap 4

Bootstrap < 4.1.2 has the following CVE:
https://nvd.nist.gov/vuln/detail/CVE-2018-14041

Removed bootstrap-theme.css due to "Replaced the separate optional
theme with configurable options via SCSS variables
(e.g., $enable-gradients: true)."

Added "width: 100%" to a few places where width 100% was no longer
getting inherited.
Moved a few elements and adjusted styles to get the same look as
before.

See https://getbootstrap.com/docs/4.0/migration/ for more
information.

Tested: Manually on a Witherspoon.
Change-Id: I0a72665ac1ca6eacd0b553a585b1fb15e14ae62c
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/app/overview/controllers/system-overview-controller.html b/app/overview/controllers/system-overview-controller.html
index 48ede3e..a548675 100644
--- a/app/overview/controllers/system-overview-controller.html
+++ b/app/overview/controllers/system-overview-controller.html
@@ -121,13 +121,6 @@
       <a href="#/server-health/event-log/high" ng-repeat="event in logs|orderBy:'-Id'|limitTo : 5">
         <div class="row column event-log__single-event">
           <div class="row">
-            <div class="column small-1 large-1 event-log__col-check">
-              <label class="control-check">
-                <input type="checkbox" name="events__check" ng-click="event.selected= ! event.selected"
-                    ng-checked="event.selected"/>
-                <span class="control__indicator"></span>
-              </label>
-            </div>
             <div class="column small-9 large-10 event-log__event-info" ng-click=""><!-- click will go to specific event in event log page-->
               <p class="inline event__id">#{{event.Id}}</p>
               <p class="inline event__priority high-priority">High</p>
diff --git a/app/overview/styles/system-overview.scss b/app/overview/styles/system-overview.scss
index 0169480..01b7bc9 100644
--- a/app/overview/styles/system-overview.scss
+++ b/app/overview/styles/system-overview.scss
@@ -1,3 +1,7 @@
+.row {
+  width: 100%;
+}
+
 .overview__server-metadata {
   border-bottom: 1px solid $medgrey;
   padding: 1.8em 0 0 0;
@@ -46,4 +50,4 @@
   text-align: right;
   font-size: .8em;
   color: $darkgrey;
-}
\ No newline at end of file
+}