v3.7.0-beta3

• Fix: Fixed broken test - Added tag to test_add_feature (#19254)
• Tweak: Updated Container experiment description [ED-7675] (#19243)
• Fix: Research: Max-width for container [ED-7719] (#19258)
• Fix: Container - RTL container arrow wrong side [ED-7456] (#19227)
• Fix: Timestamp in Onboarding data [ED-7140] (#18672)
• Fix: Editor - Typography control layout is broken [ED-7801] (#19260)
• Tweak: Added new Layout section to the Widgets panel [ED-7528] (#19264)
• Tweak: Updated content on Container widget [ED-7519] (#19265)
• Fix: Spacer widget is not working as expected [ED-7720] (#19261)
• Fix: Divider widget is not working as expected [ED-7722] #19224 (#19282)
• Fix: Align-self set to stretch is not working as expected in Container (#17052) [ED-7359] (#19281)
• Fix: Template library appears as empty when connected without pinged to template-connect [ED-5715] (#19246)
• Fix: WP CLI - Only 100 sites are processed on a multisite [ED-7834] (#18660)
• Tweak: Added 'em' border radius unit to general widget settings and global styles [ED-6775] (#18857)
• Fix: SASS deprecation warning fix breaks the license bar messages layout [ED-7840] (#19309)
• Fix: Go pro link is too wide in export kit tool [ED-7575] (#19317)
• Fix: Notice Bar can't be closed in the editor [ED-7854] (#19321)