Jbrowse feedback: Selection logic & errors

[samrichca]

• Make errors more explicit. (See number 7 & 8) QA Feedback Mega Ticket dms-jbrowse-components#18 (comment)
• Improve selection logic. If the user selects more than X files, regardless of compatibility, block Jbrowse. Update tooltip wording to reflect this.
• Make sure Jbrowse compatibility state is accurate (see Patrick's bug about selecting/unselecting controlled/open access files).

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• Disable Jbrowse button & show tooltip (& error message in the Jbrowse tab, if it was previously opened):
  • If user selects >5 files: "Too many files have been selected. A maximum of 5 files may be selected at once."
  • If user selects 0 files: "0 files have been selected. Please select 1-5 files to launch JBrowse."
  • If the user selects 1-5 files and none are compatible: use current wording.
• If the user selects 1-5 files and some aren't compatible, on the Jbrowse tab, show the visualization & selected files table, and show the yellow warning message with a list of incompatible filenames.

[b-f-chan]

All errors tested successfully on QA, closing