cubicweb-squareui #4002583 content components are displayed outside the main content column [validation pending]

prioritynormal
typebug
done in0.3.6
load0.500
load left0.000
closed by#2d5c9d5ad16b [basetemplate] Components should still be inside the content column (closes #4002583)
patch[basetemplate] Components should still be inside the content column (closes #4002583) [applied]