Update main/res/values-it/strings.xml
Update main/res/values-it/strings.xml

Fixed a few language errors (in italy the plural of english term don't keep the final 's'). And fixed a few strings where there was a mismatch of cache 'gender'.
ThibaultR/cgeo,yummy222/cgeo,marco-dev/c-geo-opensource,madankb/cgeo,samueltardieu/cgeo,madankb/cgeo,schwabe/cgeo,rsudev/c-geo-opensource,ThibaultR/cgeo,S-Bartfast/cgeo,brok85/cgeo,matej116/cgeo,superspindel/cgeo,brok85/cgeo,auricgoldfinger/cgeo,Bananeweizen/cgeo,SammysHP/cgeo,schwabe/cgeo,xiaoyanit/cgeo,tobiasge/cgeo,matej116/cgeo,yummy222/cgeo,mucek4/cgeo,KublaikhanGeek/cgeo,superspindel/cgeo,yummy222/cgeo,SammysHP/cgeo,ThibaultR/cgeo,lewurm/cgeo,rsudev/c-geo-opensource,S-Bartfast/cgeo,SammysHP/cgeo,KublaikhanGeek/cgeo,lewurm/cgeo,cgeo/cgeo,vishwakulkarni/cgeo,auricgoldfinger/cgeo,auricgoldfinger/cgeo,pstorch/cgeo,rsudev/c-geo-opensource,mucek4/cgeo,kumy/cgeo,pstorch/cgeo,marco-dev/c-geo-opensource,tobiasge/cgeo,xiaoyanit/cgeo,vishwakulkarni/cgeo,schwabe/cgeo,tobiasge/cgeo,samueltardieu/cgeo,KublaikhanGeek/cgeo,brok85/cgeo,lewurm/cgeo,S-Bartfast/cgeo,cgeo/cgeo,kumy/cgeo,schwabe/cgeo,madankb/cgeo,Huertix/cgeo,xiaoyanit/cgeo,matej116/cgeo,marco-dev/c-geo-opensource,cgeo/cgeo,samueltardieu/cgeo,vishwakulkarni/cgeo,cgeo/cgeo,Bananeweizen/cgeo,mucek4/cgeo,Huertix/cgeo,Bananeweizen/cgeo,superspindel/cgeo,pstorch/cgeo,kumy/cgeo,Huertix/cgeo