feat(Dark): Update dark colors

Author: rstoenescu

docs/src/components/page-parts/theming/ThemeBuilder.vue

@@ -119,7 +119,7 @@ export default {
         secondary: '#26A69A',
         accent: '#9C27B0',
 
-        dark: '#2f2f2f',
+        dark: '#1d1d1d',
 
         positive: '#21BA45',
         negative: '#C10015',

ui/src/css/variables.sass

@@ -77,8 +77,8 @@ $secondary : #26A69A !default
 $accent    : #9C27B0 !default
 
 // used by dark mode
-$dark-page : #212121 !default
-$dark      : #2f2f2f !default
+$dark-page : #121212 !default
+$dark      : #1d1d1d !default
 
 $positive  : #21BA45 !default
 $negative  : #C10015 !default

ui/src/css/variables.styl

@@ -164,8 +164,8 @@ $secondary ?= #26A69A
 $accent    ?= #9C27B0
 
 // used by dark mode
-$dark-page ?= #212121
-$dark      ?= #2f2f2f
+$dark-page ?= #121212
+$dark      ?= #1d1d1d
 
 $positive  ?= #21BA45
 $negative  ?= #C10015