Modernize third party services' logos

resources/icons/auth/facebook.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 266.893 266.895"><path fill="#3C5A99" d="M248.082 262.307c7.854 0 14.223-6.37 14.223-14.225V18.812c0-7.857-6.368-14.224-14.223-14.224H18.812c-7.857 0-14.224 6.367-14.224 14.224v229.27c0 7.855 6.366 14.225 14.224 14.225h229.27z"/><path fill="#FFF" d="M182.41 262.307v-99.803h33.498l5.016-38.895H182.41V98.775c0-11.26 3.126-18.935 19.274-18.935l20.596-.01V45.047c-3.562-.474-15.788-1.533-30.012-1.533-29.695 0-50.025 18.126-50.025 51.413v28.684h-33.585v38.894h33.585v99.803h40.166z"/></svg>
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resources/icons/auth/slack.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" viewBox="0 0 64 64"><style id="style3">.st0{fill:#ECB32D;} .st1{fill:#63C1A0;} .st2{fill:#E01A59;} .st3{fill:#331433;} .st4{fill:#D62027;} .st5{fill:#89D3DF;} .st6{fill:#258B74;} .st7{fill:#819C3C;}</style><g id="g5"><g id="g7"><path id="path9" fill="#ecb32d" d="M41.478 3.945C40.48.95 37.28-.677 34.288.27c-2.992.997-4.62 4.2-3.674 7.195l14.748 45.383c.997 2.784 4.042 4.36 6.928 3.52 3.044-.893 4.88-4.098 3.884-7.04 0-.104-14.696-45.383-14.696-45.383z" class="st0"/><path id="path11" fill="#63c1a0" d="M18.648 11.352c-.997-2.994-4.2-4.623-7.19-3.677-2.992.998-4.62 4.202-3.674 7.196l14.748 45.39c.997 2.784 4.04 4.36 6.928 3.52 3.044-.894 4.88-4.098 3.883-7.04 0-.105-14.695-45.383-14.695-45.383z" class="st1"/><path id="path13" fill="#e01a59" d="M60.058 41.502c2.99-.998 4.618-4.202 3.674-7.196-.997-2.994-4.2-4.622-7.19-3.677L11.14 45.44c-2.78.998-4.356 4.045-3.516 6.934.892 3.046 4.094 4.885 7.033 3.887.104 0 45.398-14.76 45.398-14.76z" class="st2"/><path id="path15" fill="#331433" d="M20.59 54.372c2.94-.946 6.77-2.207 10.864-3.52-.945-2.94-2.204-6.776-3.516-10.873l-10.865 3.514L20.59 54.37z" class="st3"/><path id="path17" fill="#d62027" d="M43.473 46.913c4.094-1.313 7.925-2.574 10.864-3.52-.945-2.94-2.204-6.776-3.516-10.873l-10.86 3.52 3.518 10.873z" class="st4"/><path id="path19" fill="#89d3df" d="M52.605 18.653c2.992-.998 4.62-4.202 3.674-7.196-1-2.994-4.2-4.623-7.19-3.677L3.74 22.54c-2.78.998-4.356 4.045-3.516 6.934.892 3.046 4.094 4.885 7.033 3.887.104 0 45.345-14.703 45.345-14.703z" class="st5"/><path id="path21" fill="#258b74" d="M13.19 31.47c2.94-.946 6.77-2.206 10.864-3.52-1.312-4.097-2.572-7.93-3.517-10.873l-10.864 3.52L13.19 31.47z" class="st6"/><path id="path23" fill="#819c3c" d="M36.02 24.063c4.094-1.313 7.925-2.573 10.864-3.52-1.312-4.096-2.57-7.93-3.516-10.872l-10.864 3.52 3.516 10.877z" class="st7"/></g></g></svg>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 122.8 122.8"><style type="text/css">.st0{fill:#E01E5A;} .st1{fill:#36C5F0;} .st2{fill:#2EB67D;} .st3{fill:#ECB22E;}</style><g transform="translate(-73.6,-73.6)"><path class="st0" d="m99.4 151.2c0 7.1-5.8 12.9-12.9 12.9s-12.9-5.8-12.9-12.9 5.8-12.9 12.9-12.9h12.9z"/><path class="st0" d="m105.9 151.2c0-7.1 5.8-12.9 12.9-12.9s12.9 5.8 12.9 12.9v32.3c0 7.1-5.8 12.9-12.9 12.9s-12.9-5.8-12.9-12.9z"/><path class="st1" d="m118.8 99.4c-7.1 0-12.9-5.8-12.9-12.9s5.8-12.9 12.9-12.9 12.9 5.8 12.9 12.9v12.9z"/><path class="st1" d="m118.8 105.9c7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9h-32.3c-7.1 0-12.9-5.8-12.9-12.9s5.8-12.9 12.9-12.9z"/><path class="st2" d="m170.6 118.8c0-7.1 5.8-12.9 12.9-12.9s12.9 5.8 12.9 12.9-5.8 12.9-12.9 12.9h-12.9z"/><path class="st2" d="m164.1 118.8c0 7.1-5.8 12.9-12.9 12.9s-12.9-5.8-12.9-12.9v-32.3c0-7.1 5.8-12.9 12.9-12.9s12.9 5.8 12.9 12.9z"/><path class="st3" d="m151.2 170.6c7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9-12.9-5.8-12.9-12.9v-12.9z"/><path class="st3" d="m151.2 164.1c-7.1 0-12.9-5.8-12.9-12.9s5.8-12.9 12.9-12.9h32.3c7.1 0 12.9 5.8 12.9 12.9s-5.8 12.9-12.9 12.9z"/></g></svg>