Update CODEOWNERS file [No hash bump needed]

Should be validated by @v.friese (organizational) and @f.uhlig (technical)

Of interest to @d.emschermann and @e.clerkin

CODEOWNERS

 # Ending a path in a `/` will specify the code owners for every file
 # nested in that directory, on any level
-/ @f.uhlig @p.-a.loizeau @d.emschermann
+/ @f.uhlig @p.-a.loizeau @v.friese
+
+# Repository technical side
+/ci_scripts/ @f.uhlig @p.-a.loizeau
+/macro/ @e.clerkin
 
 ## Detectors
 
 # TRD
 /trd/ @a.bercuci @p.kaehler
 
-# PSD
-#/psd/ @karpushkin_AT_inr.ru
+# PSD/FSD
+/psd/ @e.clerkin @i.selyuzhenkov
+/fsd/ @dvorar10_AT_fjfi.cvut.cz
 
 # MUCH
 /much/ @v.singhal
@@ -17,10 +22,13 @@
 /tof/ @n.herrmann @i.deppner
 
 # RICH
-/rich/ @s.lebedev
+/rich/ @s.lebedev @ma.beyer @s.neuhaus
 
 # STS
-/sts/ @v.friese @a.toia
+/sts/ @v.friese @a.toia @m.shiroya
 
 # MVD
 /mvd/ @c.muentz @m.deveaux
+
+# ONLINE
+/online/ @v.friese @d.smith @fweig @s.zharko

[Eoin Clerkin]

-/trd/ @a.bercuci @p.kaehler
+/trd/ @a.bercuci @p.kaehler @a.puntke

[Eoin Clerkin]

-/rich/ @s.lebedev @ma.beyer @s.neuhaus
+/rich/ @ma.beyer @s.neuhaus