Fix: typos in locales for overwatch.yml, rajnikanth.yml and street_fighter.ym (#3106)

* Fix typos in locale files: corrected "Its" to "It's" in overwatch.yml, "thier" to "their" in rajnikanth.yml, and "thier" to "their" in street_fighter.yml.

Author: smorttey

lib/locales/en/overwatch.yml

@@ -865,7 +865,7 @@ en:
           - good morning
           - Happy birthday
           - Have a nice day
-          - Its the little things
+          - It's the little things
           - Kaboom!
           - Shiny
           - Smile!

lib/locales/en/rajnikanth.yml

@@ -58,7 +58,7 @@ en:
         "When RAJNI had surgery, the anesthesia was applied to the doctors.",
         "The apple which fell on newton was actually thrown by Rajinikanth.",
         "Only Rajinijanth has 32 wisdom teeth.",
-        "When Rajinikanth goes thru immigration.. the officers show him thier passports.",
+        "When Rajinikanth goes thru immigration... the officers show him their passports.",
         "Sun doesn't rise until Rajinikanth says 'Good Morning'",
         "Once Rajnikant, after chewing the 'PAAN', spit on the wall of a building.",
         "Today that building is popularly known as THE RED FORT..",

lib/locales/en/street_fighter.yml

@@ -207,7 +207,7 @@ en:
           - My psycho power feeds on hatred and death!
           - I demand an opponent worthy of my strength!
           - When I control the planet, I shall purge it of all hope!
-          - Anyone who defies me willingly invites thier own death!
+          - Anyone who defies me willingly invites their own death!
           - Close your eyes! An endless nightmare awaits!
           - Embrace your fear as you are enveloped by an eternal nightmare!
           - Kneel before me or die beneath my heal. The choice is yours to make freely!