[styles] Change leisure-firepit color to same of picnic

Instead of "emergency" color.
Also clean svg code.

Signed-off-by: Konstantin Pastbin <konstantin.pastbin@gmail.com>

data/styles/default/dark/symbols/firepit-m.svg

@@ -1,17 +1,7 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg height="14" id="svg109" version="1.1"
-    viewBox="0 0 14 14" width="14" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-  <defs id="defs113" />
-  <metadata id="metadata115">
-    <rdf:RDF>
-      <cc:Work rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:title></dc:title>
-        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <path style="fill:#C15746;fill-opacity:0.6;stroke:none"
+<?xml version="1.0" encoding="UTF-8"?>
+<svg height="14" width="14" version="1.1"
+    viewBox="0 0 14 14"  xmlns="http://www.w3.org/2000/svg">
+  <path style="fill:#777777;stroke:none"
       d="M 5.8613281 -0.01171875 C 7.4948435 3.3410494 -1.0755672 5.5380484 6.3769531 10.130859 L 6.6992188 10.013672 C 4.8436378 7.328355 12.374438 4.1804808 5.8613281 -0.01171875 z M 9.25 3.4238281 C 10.300411 6.5115557 6.7139152 7.3962701 7.8398438 9.5976562 L 9.5292969 8.984375 C 10.207099 7.3309044 11.943051 5.9976828 9.25 3.4238281 z M 1.4746094 8.9980469 A 0.50005 0.50005 0 0 0 1.3300781 9.9707031 L 5.5449219 11.503906 L 1.3320312 13.035156 A 0.49426052 0.49426052 0 0 0 1.6679688 13.964844 L 6.9902344 12.029297 L 12.330078 13.970703 A 0.50043461 0.50043461 0 0 0 12.669922 13.029297 L 8.4550781 11.496094 L 12.667969 9.9648438 A 0.49422068 0.49422068 0 0 0 12.509766 9.0039062 A 0.49422068 0.49422068 0 0 0 12.332031 9.0351562 L 7.0097656 10.970703 L 1.6699219 9.0292969 A 0.50005 0.50005 0 0 0 1.4746094 8.9980469 z "
       id="path4157-6" />
-</svg>
+</svg>

data/styles/default/light/symbols/firepit-m.svg

@@ -1,17 +1,7 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg height="14" id="svg109" version="1.1"
-    viewBox="0 0 14 14" width="14" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-  <defs id="defs113" />
-  <metadata id="metadata115">
-    <rdf:RDF>
-      <cc:Work rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:title></dc:title>
-        <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <path style="fill:#C15746;fill-opacity:1;stroke:none"
+<?xml version="1.0" encoding="UTF-8"?>
+<svg height="14" width="14" version="1.1"
+    viewBox="0 0 14 14"  xmlns="http://www.w3.org/2000/svg">
+  <path style="fill:#717065;stroke:none"
       d="M 5.8613281 -0.01171875 C 7.4948435 3.3410494 -1.0755672 5.5380484 6.3769531 10.130859 L 6.6992188 10.013672 C 4.8436378 7.328355 12.374438 4.1804808 5.8613281 -0.01171875 z M 9.25 3.4238281 C 10.300411 6.5115557 6.7139152 7.3962701 7.8398438 9.5976562 L 9.5292969 8.984375 C 10.207099 7.3309044 11.943051 5.9976828 9.25 3.4238281 z M 1.4746094 8.9980469 A 0.50005 0.50005 0 0 0 1.3300781 9.9707031 L 5.5449219 11.503906 L 1.3320312 13.035156 A 0.49426052 0.49426052 0 0 0 1.6679688 13.964844 L 6.9902344 12.029297 L 12.330078 13.970703 A 0.50043461 0.50043461 0 0 0 12.669922 13.029297 L 8.4550781 11.496094 L 12.667969 9.9648438 A 0.49422068 0.49422068 0 0 0 12.509766 9.0039062 A 0.49422068 0.49422068 0 0 0 12.332031 9.0351562 L 7.0097656 10.970703 L 1.6699219 9.0292969 A 0.50005 0.50005 0 0 0 1.4746094 8.9980469 z "
       id="path4157-6" />
-</svg>
+</svg>