Add stacked and split diff icons (#48427)

Matt Miller created 

N/A

Change summary

assets/icons/diff_split.svg   | 5 +++++
assets/icons/diff_stacked.svg | 5 +++++
2 files changed, 10 insertions(+)

Detailed changes

assets/icons/diff_split.svg 🔗 

@@ -0,0 +1,5 @@
+<svg width="12" height="12" viewBox="0 0 12 12" fill="none" xmlns="http://www.w3.org/2000/svg">
+<rect x="2.25" y="2.25" width="2.25" height="7.5" rx="0.5625" fill="black" style="fill:black;fill-opacity:1;"/>
+<rect opacity="0.7" x="5.625" y="1.5" width="0.75" height="9" rx="0.375" fill="black" style="fill:black;fill-opacity:1;"/>
+<rect x="7.5" y="2.25" width="2.25" height="7.5" rx="0.5625" fill="black" style="fill:black;fill-opacity:1;"/>
+</svg>

assets/icons/diff_stacked.svg 🔗 

@@ -0,0 +1,5 @@
+<svg width="12" height="12" viewBox="0 0 12 12" fill="none" xmlns="http://www.w3.org/2000/svg">
+<rect opacity="0.12" x="2.25" y="6.75" width="7.5" height="3" rx="0.75" fill="black" style="fill:black;fill-opacity:1;"/>
+<rect x="2.25" y="2.25" width="7.5" height="3" rx="0.75" fill="black" style="fill:black;fill-opacity:1;"/>
+<rect x="2.625" y="7.125" width="6.75" height="2.25" rx="0.375" stroke="black" style="stroke:black;stroke-opacity:1;" stroke-width="0.75"/>
+</svg>