Increase Zowe Explorer stability and error handling

[JillieBeanSim]

Refactor activate() to minimum activation actions required, then establish trees with profiles and host connections.

Refactor the handling of errors from imperative when issues occur during readProfilesFromDisk()

Tasks

Preview Give feedback

1. Cannot retrieve Favorite datasets with * vscode-extension-for-zowe#1402
   bug priority-medium +2
2. submitting JCL using command palette and following link causes "cannot set property 'dirty' of undefined" error vscode-extension-for-zowe#1625
   bug priority-medium severity-medium +3
   
3. Error when tokenValue is missing and tokenType is APIML's vscode-extension-for-zowe#1759
   enhancement priority-medium +2
4. Unable to activate the extender extension in case of errors blocking Zowe Explorer from being activated vscode-extension-for-zowe#1908
   Research Needed bug priority-medium +3
5. Error running command zowe.ds.pattern: Cannot read properties of undefined (reading 'status'). This is likely caused by the extension that contributes zowe.ds.pattern. vscode-extension-for-zowe#1983
   bug needs more info priority-critical +3
6. Loading project in theia/che environment config not recognized until restart vscode-extension-for-zowe#1984
   priority-medium severity-medium v2-profiles +3
7. Allow users to easily open config to address errors vscode-extension-for-zowe#1986
   v2-profiles +1
   
8. ZE-FTP: Avoid throwing empty error when we know the reason of the failure vscode-extension-for-zowe#2143
   Technical Debt enhancement priority-low +3