Update twitter logo

[NotMyFault]

The change proposed looks like

Closes #6764
Closes https://github.com/jenkins-infra/jenkins.io

[zbynek]

You should probably change mask-image as well to make the same change in FireFox.
https://developer.mozilla.org/en-US/docs/Web/CSS/mask-image#browser_compatibility

[zbynek]

Looks good in individual blog pages.

jenkins.io/content/node/index.html.haml

Line 60 in 9741a93

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M496 109.5a201.8 201.8 0 01-56.55 15.3 97.51 97.51 0 0043.33-53.6 197.74 197.74 0 01-62.56 23.5A99.14 99.14 0 00348.31 64c-54.42 0-98.46 43.4-98.46 96.9a93.21 93.21 0 002.54 22.1 280.7 280.7 0 01-203-101.3A95.69 95.69 0 0036 130.4c0 33.6 17.53 63.3 44 80.7A97.5 97.5 0 0135.22 199v1.2c0 47 34 86.1 79 95a100.76 100.76 0 01-25.94 3.4 94.38 94.38 0 01-18.51-1.8c12.51 38.5 48.92 66.5 92.05 67.3A199.59 199.59 0 0139.5 405.6a203 203 0 01-23.5-1.4A278.68 278.68 0 00166.74 448c181.36 0 280.44-147.7 280.44-275.8 0-4.2-.11-8.4-.31-12.5A198.48 198.48 0 00496 109.5z" stroke-width="40" stroke-linecap="round" stroke="currentColor" fill="transparent" /></svg>

might need changing as well, but that doesn't have to be a part of this PR

[NotMyFault]

Looks good in individual blog pages.

jenkins.io/content/node/index.html.haml

Line 60 in 9741a93

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M496 109.5a201.8 201.8 0 01-56.55 15.3 97.51 97.51 0 0043.33-53.6 197.74 197.74 0 01-62.56 23.5A99.14 99.14 0 00348.31 64c-54.42 0-98.46 43.4-98.46 96.9a93.21 93.21 0 002.54 22.1 280.7 280.7 0 01-203-101.3A95.69 95.69 0 0036 130.4c0 33.6 17.53 63.3 44 80.7A97.5 97.5 0 0135.22 199v1.2c0 47 34 86.1 79 95a100.76 100.76 0 01-25.94 3.4 94.38 94.38 0 01-18.51-1.8c12.51 38.5 48.92 66.5 92.05 67.3A199.59 199.59 0 0139.5 405.6a203 203 0 01-23.5-1.4A278.68 278.68 0 00166.74 448c181.36 0 280.44-147.7 280.44-275.8 0-4.2-.11-8.4-.31-12.5A198.48 198.48 0 00496 109.5z" stroke-width="40" stroke-linecap="round" stroke="currentColor" fill="transparent" /></svg>

might need changing as well, but that doesn't have to be a part of this PR

These are ionicons, awaiting ionic-team/ionicons#1249

[MarkEWaite]

Thanks!