PluginConfigDialog: Slight usability changes
PluginConfigDialog: Slight usability changes

- Set focus to the first LineEdit instead of the confirm button.
- Default to GDScript rather than whatever language was first
registered with the ScriptServer.

DmitriySalnikov/godot,okamstudio/godot,ZuBsPaCe/godot,Faless/godot,guilhermefelipecgs/godot,vkbsb/godot,Faless/godot,groud/godot,pkowal1982/godot,guilhermefelipecgs/godot,DmitriySalnikov/godot,firefly2442/godot,pkowal1982/godot,ZuBsPaCe/godot,akien-mga/godot,okamstudio/godot,ex/godot,godotengine/godot,godotengine/godot,honix/godot,BastiaanOlij/godot,godotengine/godot,BastiaanOlij/godot,sanikoyes/godot,DmitriySalnikov/godot,Zylann/godot,DmitriySalnikov/godot,akien-mga/godot,Shockblast/godot,ex/godot,MarianoGnu/godot,honix/godot,DmitriySalnikov/godot,sanikoyes/godot,Valentactive/godot,ex/godot,pkowal1982/godot,vnen/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,Paulloz/godot,Valentactive/godot,vnen/godot,firefly2442/godot,guilhermefelipecgs/godot,Valentactive/godot,guilhermefelipecgs/godot,sanikoyes/godot,Shockblast/godot,ex/godot,pkowal1982/godot,Faless/godot,guilhermefelipecgs/godot,Valentactive/godot,pkowal1982/godot,vnen/godot,ZuBsPaCe/godot,honix/godot,josempans/godot,guilhermefelipecgs/godot,groud/godot,Faless/godot,ex/godot,groud/godot,josempans/godot,Zylann/godot,Paulloz/godot,vkbsb/godot,josempans/godot,sanikoyes/godot,firefly2442/godot,sanikoyes/godot,Faless/godot,Shockblast/godot,Shockblast/godot,Paulloz/godot,Valentactive/godot,Paulloz/godot,godotengine/godot,guilhermefelipecgs/godot,firefly2442/godot,MarianoGnu/godot,akien-mga/godot,okamstudio/godot,vnen/godot,okamstudio/godot,Shockblast/godot,Shockblast/godot,pkowal1982/godot,pkowal1982/godot,akien-mga/godot,BastiaanOlij/godot,honix/godot,godotengine/godot,MarianoGnu/godot,josempans/godot,vkbsb/godot,vkbsb/godot,josempans/godot,Zylann/godot,Zylann/godot,groud/godot,akien-mga/godot,Zylann/godot,vnen/godot,MarianoGnu/godot,ex/godot,godotengine/godot,Shockblast/godot,DmitriySalnikov/godot,vkbsb/godot,okamstudio/godot,ZuBsPaCe/godot,okamstudio/godot,sanikoyes/godot,Faless/godot,vkbsb/godot,BastiaanOlij/godot,okamstudio/godot,groud/godot,ex/godot,Zylann/godot,Paulloz/godot,akien-mga/godot,Paulloz/godot,firefly2442/godot,MarianoGnu/godot,Paulloz/godot,godotengine/godot,okamstudio/godot,Valentactive/godot,Zylann/godot,vnen/godot,pkowal1982/godot,MarianoGnu/godot,josempans/godot,BastiaanOlij/godot,Faless/godot,honix/godot,honix/godot,ex/godot,josempans/godot,vnen/godot,Faless/godot,firefly2442/godot,sanikoyes/godot,okamstudio/godot,ZuBsPaCe/godot,Shockblast/godot,okamstudio/godot,godotengine/godot,MarianoGnu/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,vnen/godot,josempans/godot,vkbsb/godot,BastiaanOlij/godot,ZuBsPaCe/godot,akien-mga/godot,BastiaanOlij/godot,Valentactive/godot,MarianoGnu/godot,vkbsb/godot,BastiaanOlij/godot,firefly2442/godot,Valentactive/godot,Zylann/godot,firefly2442/godot,sanikoyes/godot,groud/godot,akien-mga/godot