PXP-6409 Remove arranger

[mfshao]

This PR fulfills https://ctds-planx.atlassian.net/browse/PXP-6409

Removing Arranger and related codes (mostly the old DataExplorer and ExplorerPage) to simplify logic and reduce bundle size

• DataExplorer is the old Arranger based explorer, not GuppyDataExplorer
• ExplorerPage is the old Peregrine based file explorer

Close #725

Breaking Changes

• Arranger is removed
• DataExplorer is removed
• ExplorerPage is removed

Dependency updates

• Arranger is removed

Deployment changes

• All envs should check if the dataExplorerConfig field in its portal config has ONLY arrangerConfig field but NO guppyConfig field (it is okay to have both). If so, please update dataExplorerConfig to use Guppy

[lgtm-com]

This pull request fixes 4 alerts when merging 6a1e3f6 into a6cea28 - view on LGTM.com

fixed alerts:

• 2 for Potentially inconsistent state update
• 1 for Useless assignment to local variable
• 1 for Unused or undefined state property

[lgtm-com]

This pull request fixes 4 alerts when merging 3827395 into 7b8324f - view on LGTM.com

fixed alerts:

• 2 for Potentially inconsistent state update
• 1 for Useless assignment to local variable
• 1 for Unused or undefined state property

[lgtm-com]

This pull request fixes 4 alerts when merging 202a176 into cffd906 - view on LGTM.com

fixed alerts:

• 2 for Potentially inconsistent state update
• 1 for Useless assignment to local variable
• 1 for Unused or undefined state property

[lgtm-com]

This pull request fixes 4 alerts when merging b8129ce into 08f94f1 - view on LGTM.com

fixed alerts:

• 2 for Potentially inconsistent state update
• 1 for Useless assignment to local variable
• 1 for Unused or undefined state property