Update templates (#772)

Author: rcalixte

.github/CODEOWNERS

@@ -9,6 +9,7 @@ SanitizeXsessionErrors@claudiux/*                  @claudiux
 ShadowParameters@mikhail-ekzi/*                    @mikhail-ekzi
 adjacent-windows@klangman/*                        @klangman
 back-to-monitor@nathan818fr/*                      @nathan818fr
+blur-overview@nailfarmer.nailfarmer.com/*          @klangman
 cinnamon-dynamic-wallpaper@TobiZog/*               @TobiZog
 compiz-windows-effect@hermes83.github.com/*        @hermes83
 desktop-icons-per-workspace@cardsurf/*             @cardsurf
@@ -28,7 +29,6 @@ user-shadows@nathan818fr/*                         @nathan818fr
 watermark@germanfr/*                               @germanfr
 
 # The following xlets have no author assigned to them.
-# blur-overview@nailfarmer.nailfarmer.com
 # cinnamon-maximus@fmete
 # desktop-scroller@ccadeptic23
 # gTile@shuairan

.github/ISSUE_TEMPLATE/01_bug_report.yml

@@ -45,7 +45,7 @@ body:
     - ''
     - adjacent-windows@klangman @klangman
     - back-to-monitor@nathan818fr @nathan818fr
-    - blur-overview@nailfarmer.nailfarmer.com
+    - blur-overview@nailfarmer.nailfarmer.com @klangman
     - cinnamon-dynamic-wallpaper@TobiZog @TobiZog
     - cinnamon-maximus@fmete
     - CinnamonBurnMyWindows@klangman @klangman

.github/ISSUE_TEMPLATE/02_feature_request.yml

@@ -13,7 +13,7 @@ body:
     - ''
     - adjacent-windows@klangman @klangman
     - back-to-monitor@nathan818fr @nathan818fr
-    - blur-overview@nailfarmer.nailfarmer.com
+    - blur-overview@nailfarmer.nailfarmer.com @klangman
     - cinnamon-dynamic-wallpaper@TobiZog @TobiZog
     - cinnamon-maximus@fmete
     - CinnamonBurnMyWindows@klangman @klangman