added better error handling for query parsing :star:

[shivasurya]

This PR adds better error reporting for query syntax issues instead of crashing the whole application. 🎸

Progress: 100%
2024/09/07 22:25:31 Elapsed time:  456.686083ms
2024/09/07 22:25:31 Graph built successfully
Path-Finder Query Console: 
>wdfweldjfgw
Executing query: wdfweldjfgw

PathFinder Query syntax error: 
line 1:0 missing 'FIND' at 'wdfweldjfgw'
line 2:0 mismatched input '<EOF>' expecting 'AS'

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 12.50000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 80.03%. Comparing base (67437dd) to head (4263f1b). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sourcecode-parser/cmd/query.go	12.50%	6 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #126 +/- ## ========================================== - Coverage 80.27% 80.03% -0.25% ========================================== Files 12 12 Lines 1303 1307 +4 ========================================== Hits 1046 1046 - Misses 228 231 +3 - Partials 29 30 +1 ```

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