EditorNode: New default dock layout
EditorNode: New default dock layout

As discussed with @reduz, now that the FileSystem dock is getting
files display in tree view (#21426), we can change the docks layout
again to give more height to the new inspector.

The new layout is thus:
- Top left: Scene and Import docks
- Bottom left: FileSystem
- Right (full height): Inspector and Node docks

The 2nd left (LEFT_R) and 1st right (RIGHT_L) VSplitContainers (the
ones in use) also get an additional 40px of width compared to their
previous size (which was the minimum size).

Fixes #21480.

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