Add Scrolling Overflow Styles. Make Branch/State Height Fixed

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+trim_trailing_whitespace = true
+charset = utf-8
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

src/BranchList/BranchList.sass

@@ -5,3 +5,4 @@
 .history-branch-list
   @extend %flexy
   flex-direction: column
+  overflow-y: scroll

src/History/History.sass

@@ -7,6 +7,8 @@
   @extend %flexy
   align-content: space-between
   flex-direction: column
+  height: 100%
+  width: 100%
 
 .state-list-container
   @extend %flexy

src/State/State.sass

@@ -6,7 +6,10 @@ $highlight: #f93
   border-top: 1px solid $white
   cursor: pointer
   display: flex
+  min-height: 30px
+  min-width: 250px
   padding: 4px
+  position: relative
 
   &:not(:hover)
     border-right: 3px solid transparent