Improve orthogonal routing

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.97 :tada:

Comparison is base (ce06b23) 83.86% compared to head (43a7d5c) 84.84%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #33 +/- ## ========================================== + Coverage 83.86% 84.84% +0.97% ========================================== Files 24 24 Lines 936 950 +14 ========================================== + Hits 785 806 +21 + Misses 151 144 -7 ``` | [Impacted Files](https://app.codecov.io/gh/mahrz24/netext/pull/33?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm) | Coverage Δ | | |---|---|---| | [netext/edge\_rasterizer.py](https://app.codecov.io/gh/mahrz24/netext/pull/33?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm#diff-bmV0ZXh0L2VkZ2VfcmFzdGVyaXplci5weQ==) | `89.55% <100.00%> (+0.48%)` | :arrow_up: | | [netext/edge\_routing/edge.py](https://app.codecov.io/gh/mahrz24/netext/pull/33?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm#diff-bmV0ZXh0L2VkZ2Vfcm91dGluZy9lZGdlLnB5) | `94.89% <100.00%> (+2.11%)` | :arrow_up: | | [netext/edge\_routing/orthogonal.py](https://app.codecov.io/gh/mahrz24/netext/pull/33?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm#diff-bmV0ZXh0L2VkZ2Vfcm91dGluZy9vcnRob2dvbmFsLnB5) | `100.00% <100.00%> (+5.26%)` | :arrow_up: | | [netext/layout\_engines/grandalf.py](https://app.codecov.io/gh/mahrz24/netext/pull/33?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm#diff-bmV0ZXh0L2xheW91dF9lbmdpbmVzL2dyYW5kYWxmLnB5) | `100.00% <100.00%> (ø)` | | | [netext/node\_rasterizer.py](https://app.codecov.io/gh/mahrz24/netext/pull/33?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm#diff-bmV0ZXh0L25vZGVfcmFzdGVyaXplci5weQ==) | `77.47% <100.00%> (+1.74%)` | :arrow_up: | ... and [2 files with indirect coverage changes](https://app.codecov.io/gh/mahrz24/netext/pull/33/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Malte+Klemm)

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