chore: Add mdi mimetype svgs

- article for text
- description for x-office-document
- file-table-box for x-office-spreadsheet
- file-presentation-box for x-office-presentation
- drawing-box for x-office-drawing

Signed-off-by: Christopher Ng <chrng8@gmail.com>

core/img/filetypes/text.svg

@@ -1 +1,5 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="m2.5 1c-0.28 0-0.5 0.22-0.5 0.5v13c0 0.28 0.22 0.5 0.5 0.5h11c0.28 0 0.5-0.22 0.5-0.5v-10.5l-3-3h-8.5zm1.5 2h6v1h-6v-1zm0 3h5v1h-5v-1zm0 3h8v1h-8v-1zm0 3h4v1h-4v-1z" fill="#969696"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="#000000">
+	<path d="M0 0h24v24H0z" fill="none" />
+	<path fill="var(--color-text-maxcontrast)"
+		d="M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-5 14H7v-2h7v2zm3-4H7v-2h10v2zm0-4H7V7h10v2z" />
+</svg>

core/img/filetypes/x-office-document.svg

@@ -1 +1,5 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="m2.5 1c-0.28 0-0.5 0.22-0.5 0.5v13c0 0.28 0.22 0.5 0.5 0.5h11c0.28 0 0.5-0.22 0.5-0.5v-10.5l-3-3h-8.5zm1.5 2h6v1h-6v-1zm0 3h5v1h-5v-1zm0 3h8v1h-8v-1zm0 3h4v1h-4v-1z" fill="#49abea"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="#000000">
+	<path d="M0 0h24v24H0z" fill="none" />
+	<path fill="#49abea"
+		d="M14 2H6c-1.1 0-1.99.9-1.99 2L4 20c0 1.1.89 2 1.99 2H18c1.1 0 2-.9 2-2V8l-6-6zm2 16H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z" />
+</svg>

core/img/filetypes/x-office-drawing.svg

@@ -1 +1,4 @@
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="M2.5 1c-.28 0-.5.22-.5.5v13c0 .28.22.5.5.5h11c.28 0 .5-.22.5-.5V4l-3-3H2.5zM4 6h2.8v1.2h2.4V6H12v3.2H9.2V8h-.8v3.2h.8V10H12v3.2H9.2V12H7.6V8h-.8v1.2H4V6z" fill="#ebc94a"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+	<path fill="#b39114"
+		d="M18,18H12V12.21C11.34,12.82 10.47,13.2 9.5,13.2C7.46,13.2 5.8,11.54 5.8,9.5A3.7,3.7 0 0,1 9.5,5.8C11.54,5.8 13.2,7.46 13.2,9.5C13.2,10.47 12.82,11.34 12.21,12H18M19,3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5C21,3.89 20.1,3 19,3Z" />
+</svg>

core/img/filetypes/x-office-presentation.svg

@@ -1 +1,4 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="m1.5 2c-0.25 0-0.5 0.25-0.5 0.5v11c0 0.25 0.25 0.5 0.5 0.5h13c0.25 0 0.5-0.25 0.5-0.5v-11c0-0.25-0.25-0.5-0.5-0.5zm0.5 3h12v6h-12z" fill="#f0965f"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+	<path fill="#f0965f"
+		d="M19,16H5V8H19M19,3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5C21,3.89 20.1,3 19,3Z" />
+</svg>

core/img/filetypes/x-office-spreadsheet.svg

@@ -1 +1,4 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="m2.5 1c-0.28 0-0.5 0.22-0.5 0.5v13c0 0.28 0.22 0.5 0.5 0.5h11c0.28 0 0.5-0.22 0.5-0.5v-10.5l-3-3h-8.5zm1.5 3h2v2h-2v-2zm3 0h5v2h-5v-2zm-3 3h2v2h-2v-2zm3 0h5v2h-5v-2zm-3 3h2v2h-2v-2zm3 0h5v2h-5v-2z" fill="#9abd4e"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+	<path fill="#9abd4e"
+		d="M19 3H5C3.89 3 3 3.89 3 5V19C3 20.1 3.9 21 5 21H19C20.1 21 21 20.1 21 19V5C21 3.89 20.1 3 19 3M9 18H6V16H9V18M9 15H6V13H9V15M9 12H6V10H9V12M13 18H10V16H13V18M13 15H10V13H13V15M13 12H10V10H13V12Z" />
+</svg>