4.0.0-alpha.4

Changes since v4.0.0-alpha.3

• Add CI step to run future extension tests (#1214)
• Load symlinked extension folders (#1207)
• Add +/- buttons in scale deployment popup screen (#1191)
• Fixing return statements in Pod menus (#1211)
• [BugFix] Chart details are not updated on selecting another chart (#1155)