GEL defect and ui changes

public/assets/images/arrow-right--black.svg

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+<svg width="33" height="20" xmlns="http://www.w3.org/2000/svg"><path d="M13 10L9.7 6.5 3.4 0 .1 3.6 6.2 10 .1 16.4 3.4 20l6.3-6.5z" fill="#111"/></svg>

public/assets/images/arrow-right--white.svg

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+<svg width="33" height="20" xmlns="http://www.w3.org/2000/svg"><path d="M13 10L9.7 6.5 3.4 0 .1 3.6 6.2 10 .1 16.4 3.4 20l6.3-6.5z" fill="#fff"/></svg>

public/assets/images/planning-casework-cy.svg

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+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="279px" height="24px" viewBox="0 0 279 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>Cynllunio gwaith ach</title>
+    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-family="Rockwell-Bold, Rockwell" font-size="24" font-weight="bold" letter-spacing="-0.75">
+        <text id="Cynllunio-gwaith-ach" fill="#000000">
+            <tspan x="-1" y="18">Cynllunio gwaith achos</tspan>
+        </text>
+    </g>
+</svg>

public/assets/images/planning-casework-en.svg

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+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="227px" height="24px" viewBox="0 0 227 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <title>Planning casework</title>
+    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-family="Rockwell-Bold, Rockwell" font-size="24" font-weight="bold" letter-spacing="-0.75">
+        <text id="Planning-casework" fill="#000000">
+            <tspan x="0" y="18">Planning casework</tspan>
+        </text>
+    </g>
+</svg>