Replace stick figure with smiley

docs/source/development/figs/notebook_components.svg

@@ -7,6 +7,7
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    xmlns:svg="http://www.w3.org/2000/svg"
    xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
    xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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@@ -188,6 +189,94
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          transform="matrix(-1.1,0,0,-1.1,-1.1,0)" />
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+       fy="38.57143"
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+    <linearGradient
+       id="linearGradient4565"
+       inkscape:collect="always">
+      <stop
+         id="stop4567"
+         offset="0"
+         style="stop-color:#000000;stop-opacity:1;" />
+      <stop
+         id="stop4569"
+         offset="1"
+         style="stop-color:#000000;stop-opacity:0;" />
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+    <linearGradient
+       id="linearGradient3290">
+      <stop
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+         offset="0.0000000"
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+         offset="1.0000000"
+         style="stop-color:#ffb738;stop-opacity:1.0000000;" />
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+       fy="39.5928"
+       gradientUnits="userSpaceOnUse">
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+         offset="0.0000000"
+         style="stop-color:#777777;stop-opacity:1.0000000;"
+         id="stop8602" />
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+         style="stop-color:#000000"
+         id="stop8604" />
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@@ -197,8 +286,8
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      inkscape:pageshadow="2"
      inkscape:zoom="0.98994949"
-     inkscape:cx="414.30751"
-     inkscape:cy="88.902823"
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+     inkscape:cy="111.55604"
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      showgrid="false"
@@ -220,7 +309,7
         <dc:format>image/svg+xml</dc:format>
         <dc:type
            rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
+        <dc:title />
       </cc:Work>
     </rdf:RDF>
   </metadata>
@@ -230,42 +319,6
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       <rect
@@ -382,16 +435,15
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     <text
        xml:space="preserve"
-       style="font-size:32px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
-       x="-178.41751"
-       y="41.691643"
+       style="font-size:28px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;font-family:Droid Sans;-inkscape-font-specification:Droid Sans"
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+       y="193.37286"
        id="text5579"
-       sodipodi:linespacing="125%"
-       transform="matrix(0,-1,1,0,0,0)"><tspan
+       sodipodi:linespacing="125%"><tspan
          sodipodi:role="line"
          id="tspan5581"
-         x="-178.41751"
-         y="41.691643">User</tspan></text>
+         x="20.674601"
+         y="193.37286">User</tspan></text>
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        transform="matrix(0,1,-1,0,629.1601,37.48252)"
        id="g5575-1-4-9">
@@ -470,5 +522,75
            x="-209.10046"
            sodipodi:role="line">Websockets</tspan></text>
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