feat: Prepare new Messages for Overview Widget Placeholders - MEED-2804…

… - Meeds-io/MIPs#100 (#1283)

This change will introduce new labels that will be needed by new
Overview Page Widget Placeholders. (In order to activate a first sync of
crowdin using a new workflow)

portlets/src/main/resources/locale/portlet/Challenges_en.properties

@@ -389,14 +389,12 @@ gamification.overview.label.firstAnnounecement=Be the first to do it
 gamification.overview.label.actionsAvailable=Available Actions
 search.connector.label.rules=Actions
 
+gamification.overview.programsOverviewSummary=Let's do it smoothly by {0}doing this program{1}
+gamification.overview.topChallengersSummary=Challenge yourself by taking actions and be known
+gamification.overview.challengesOverviewSummary=Don't rush and {0}start checking these actions{1}
 gamification.overview.programs=Programs
-gamification.overview.weeklyLeaderboard=Weekly Leaderboard
+gamification.overview.leaderboard=Leaderboard
 gamification.overview.actions=Actions
-gamification.overview.actionsList=Actions list
-gamification.overview.programsList=Programs list
-gamification.overview.leaderboard.drawer.title=Leaderboard
-gamification.overview.programsFilter.drawer.title=Filter by program
-gamification.overview.userAchievementsList.drawer.title=Achievements List
 gamification.overview.reputationKudosSummary={0}Congratulate your peers{1} to encourage them to participate and to share more!
 gamification.overview.reputationKudosSummaryForExternal=Send kudos to other community members to encourage them to participate and to share more!
 gamification.overview.reputationBadgesSummary=Get badges related to your actions and value your skills.