Fix inconsistent capitalization in label colors

app/helpers/labels_helper.rb

@@ -79,10 +79,10 @@ module LabelsHelper
     {
       '#0033CC' => s_('SuggestedColors|UA blue'),
       '#428BCA' => s_('SuggestedColors|Moderate blue'),
-      '#44AD8E' => s_('SuggestedColors|lime green'),
+      '#44AD8E' => s_('SuggestedColors|Lime green'),
       '#A8D695' => s_('SuggestedColors|Feijoa'),
       '#5CB85C' => s_('SuggestedColors|Slightly desaturated green'),
-      '#69D100' => s_('SuggestedColors|Bright Green'),
+      '#69D100' => s_('SuggestedColors|Bright green'),
       '#004E00' => s_('SuggestedColors|Very dark lime green'),
       '#34495E' => s_('SuggestedColors|Very dark desaturated blue'),
       '#7F8C8D' => s_('SuggestedColors|Dark grayish cyan'),

locale/gitlab.pot

@@ -9415,7 +9415,7 @@ msgstr ""
 msgid "Suggested change"
 msgstr ""
-msgid "SuggestedColors|Bright Green"
+msgid "SuggestedColors|Bright green"
 msgstr ""
 msgid "SuggestedColors|Dark grayish cyan"
@@ -9436,6 +9436,9 @@ msgstr ""
 msgid "SuggestedColors|Feijoa"
 msgstr ""
+msgid "SuggestedColors|Lime green"
+msgstr ""
+
 msgid "SuggestedColors|Moderate blue"
 msgstr ""
@@ -9475,9 +9478,6 @@ msgstr ""
 msgid "SuggestedColors|Very pale orange"
 msgstr ""
-msgid "SuggestedColors|lime green"
-msgstr ""
-
 msgid "Sunday"
 msgstr ""