fix: add user agent fix and test cases for Opera on Android

[BenjaminAbt]

• fixes Version 3.1.2 chokes (fails hard) on parsing real-world user agent that previous versions could parse successfully #95

Benchmark Parse

| Method | Job       | Runtime   | Mean     | Error     | StdDev    | Gen0   | Allocated |
|------- |---------- |---------- |---------:|----------:|----------:|-------:|----------:|
| Parse  | .NET 10.0 | .NET 10.0 | 2.578 us | 0.0154 us | 0.0129 us | 0.0038 |      80 B |
| Parse  | .NET 8.0  | .NET 8.0  | 3.365 us | 0.0128 us | 0.0107 us | 0.0038 |      80 B |
| Parse  | .NET 9.0  | .NET 9.0  | 3.377 us | 0.0179 us | 0.0167 us | 0.0038 |      80 B |

Benchmark Lib Comparison:

| Method             | Categories | Data         | Mean            | Error            | StdDev         | Ratio     | RatioSD | Gen0     | Gen1     | Gen2     | Allocated  | Alloc Ratio |
|------------------- |----------- |------------- |----------------:|-----------------:|---------------:|----------:|--------:|---------:|---------:|---------:|-----------:|------------:|
| MyCSharp           | Basic      | Chrome Win10 |       958.47 ns |        37.481 ns |       2.054 ns |      1.00 |    0.00 |   0.0019 |        - |        - |       48 B |        1.00 |
| UAParser           | Basic      | Chrome Win10 | 9,418,639.58 ns | 2,533,776.349 ns | 138,884.832 ns |  9,826.75 |  126.81 | 671.8750 | 609.3750 | 109.3750 | 11659008 B |  242,896.00 |
| DeviceDetector.NET | Basic      | Chrome Win10 | 5,298,983.07 ns | 1,340,637.184 ns |  73,484.848 ns |  5,528.59 |   67.19 | 296.8750 | 140.6250 |  31.2500 |  5034130 B |  104,877.71 |
|                    |            |              |                 |                  |                |           |         |          |          |          |            |             |
| MyCSharp           | Basic      | Google-Bot   |       232.39 ns |        11.982 ns |       0.657 ns |      1.00 |    0.00 |        - |        - |        - |          - |          NA |
| UAParser           | Basic      | Google-Bot   | 9,545,001.56 ns | 1,544,591.635 ns |  84,664.280 ns | 41,073.51 |  331.15 | 687.5000 | 640.6250 | 125.0000 | 12015474 B |          NA |
| DeviceDetector.NET | Basic      | Google-Bot   | 6,250,936.98 ns | 2,627,454.822 ns | 144,019.665 ns | 26,898.68 |  540.73 | 500.0000 |  62.5000 |        - |  8862439 B |          NA |
|                    |            |              |                 |                  |                |           |         |          |          |          |            |             |
| MyCSharp           | Cached     | Chrome Win10 |        25.23 ns |         1.923 ns |       0.105 ns |      1.00 |    0.01 |        - |        - |        - |          - |          NA |
| UAParser           | Cached     | Chrome Win10 |   164,539.39 ns |     6,855.195 ns |     375.756 ns |  6,522.34 |   26.92 |   2.1973 |        - |        - |    37488 B |          NA |
|                    |            |              |                 |                  |                |           |         |          |          |          |            |             |
| MyCSharp           | Cached     | Google-Bot   |        18.15 ns |         1.651 ns |       0.090 ns |      1.00 |    0.01 |        - |        - |        - |          - |          NA |
| UAParser           | Cached     | Google-Bot   |   134,016.54 ns |    19,517.472 ns |   1,069.819 ns |  7,382.56 |   60.17 |   2.6855 |        - |        - |    45856 B |          NA |