Improve the 2D editor ruler display
Improve the 2D editor ruler display

- Use the ° symbol instead of "deg" to reduce clutter.
- Round the displayed lengths to only one decimal instead of two
  to further reduce clutter.
- Don't make the `px` suffix localizable, as it isn't localizable
  anywhere else in the editor.

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