feat(icons): added chart-quadrant icon (#4981)

* feat(icons): added `chart-quadrant` icon

* Update icons/chart-quadrant.json

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update icons/chart-quadrant.json

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update icons/chart-quadrant.json

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* chart-quadrant: based on chart-scatter

* review changes

* Update icons/chart-quadrant.svg

Co-authored-by: Karsa <contact@karsa.org>

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Eric Fennis <eric.fennis@gmail.com>
Co-authored-by: Karsa <contact@karsa.org>

icons/chart-quadrant.json

@@ -0,0 +1,37 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "danielbayley",
+    "ericfennis",
+    "nito"
+  ],
+  "use-cases": [
+    "Showing 2D data points on 4 areas",
+    "Visualizing 2D point distributions split into four sectors in analytics dashboards",
+    "Comparing two-variable trade-offs in decision-making and product strategy interfaces",
+    "Representing SWOT or other 2x2 strategic matrices in business tools"
+  ],
+  "tags": [
+    "quadrant",
+    "chart",
+    "diagram",
+    "statistics",
+    "analytics",
+    "graph",
+    "chart-scatter",
+    "scatter plot",
+    "2x2",
+    "matrix",
+    "segmentation",
+    "correlation",
+    "comparison",
+    "risk",
+    "swot",
+    "clustering"
+  ],
+  "categories": [
+    "charts",
+    "science",
+    "math"
+  ]
+}

icons/chart-quadrant.svg

@@ -0,0 +1,19 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M13 3v18" />
+  <path d="M3 12h18" />
+  <path d="M3 3v16a2 2 0 002 2h16" />
+  <circle cx="17.5" cy="5.5" r="0.5" fill="currentColor" />
+  <circle cx="19.5" cy="16.5" r="0.5" fill="currentColor" />
+  <circle cx="7.5" cy="16.5" r="0.5" fill="currentColor" />
+  <circle cx="7.5" cy="7.5" r="0.5" fill="currentColor" />
+</svg>