A few description grammar fixes (#27134)

* Double spaces

* more space and misspelling

* Fixing punctuations

* Not now

* double dots

* Apply suggestions from code review

Signed-off-by: Henri215 <77684085+Henri215@users.noreply.github.com>

---------

Signed-off-by: Henri215 <77684085+Henri215@users.noreply.github.com>

code/modules/power/engines/singularity/emitter.dm

@@ -4,7 +4,7 @@
 
 /obj/machinery/power/emitter
 	name = "emitter"
-	desc = "A heavy duty industrial laser"
+	desc = "A heavy duty industrial laser."
 	icon = 'icons/obj/singularity.dmi'
 	icon_state = "emitter"
 	anchored = FALSE

code/modules/power/generators/solar.dm

@@ -179,7 +179,7 @@
 
 /obj/item/solar_assembly
 	name = "solar panel assembly"
-	desc = "A solar panel assembly kit, allows constructions of a solar panel, or with a tracking circuit board, a solar tracker"
+	desc = "A solar panel assembly kit, allows constructions of a solar panel, or with a tracking circuit board, a solar tracker."
 	icon = 'icons/goonstation/objects/power.dmi'
 	icon_state = "sp_base"
 	item_state = "electropack"