Fix - character must be non-negative in JAS issues with a location value of 0

[attiasas]

• [x] All tests passed. If this feature is not already covered by the tests, I added new tests.

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[ERR - 18:12:36] Error: Illegal argument: character must be non-negative

There is a different mapping that vscode expects as positions at file. For vscode the minimum value (i.e first row/col) is 0 while the results mapped to it is 1 from the scanners.

Fixing a bug that occurs when issues discovered at JAS scans (CA and secrets) have a location with row/col 0:

"region": {
      "snippet": {
             "text": "*******"
      },
      "endColumn": 0,
      "endLine": 3,
      "startColumn": 0,
      "startLine": 3
},