replace sparkline library with modern equivalent (#12066)

* replace sparkline library with modern equivalent

* test setting $enableSparklineImages to true for UI tests

* update LEGALNOTICE

* add minimum and maximum dots

* further improve sparklines

- no minimum/maximum if they are the same
- add offset to the top so that maximum isn't stuck at the border
- doubled resolution of image as it was a bit blurry and it's still
<1.5KB

* fix display size of sparklines

* make Sparklines red

* fix sparkline size in rowEvoluton

* change line colors to black

* lastPoint and padding

* update Sparkline to new version

* remove possibility to disable sparklines ($enableSparklineImages)

* handle formatted numbers

* Updates UI files

1 files changed, 6 insertions, 1 deletions

diff --git a/plugins/CoreHome/javascripts/sparkline.js b/plugins/CoreHome/javascripts/sparkline.js
index 887023ba89..157fc15b13 100644
--- a/plugins/CoreHome/javascripts/sparkline.js
+++ b/plugins/CoreHome/javascripts/sparkline.js
@@ -7,7 +7,10 @@
 
 (function ($) {
 
-var sparklineColorNames = ['backgroundColor', 'lineColor', 'minPointColor', 'maxPointColor', 'lastPointColor'];
+var sparklineColorNames = ['backgroundColor', 'lineColor', 'minPointColor', 'maxPointColor', 'lastPointColor', 'fillColor'];
+
+var sparklineDisplayHeight = 25;
+var sparklineDisplayWidth = 100;
 
 piwik.getSparklineColors = function () {
     return piwik.ColorManager.getColors('sparkline-colors', sparklineColorNames);
@@ -30,6 +33,8 @@ piwik.initSparklines = function() {
         if (token_auth.length) {
             appendToSparklineUrl += '&token_auth=' + token_auth;
         }
+        $self.attr('width', sparklineDisplayWidth);
+        $self.attr('height', sparklineDisplayHeight);
         $self.attr('src', $self.attr('data-src') + appendToSparklineUrl);
     });
 };