more font awesome icons

[FabianBartl]

• https://github.com/FabianBartl/mtex-toolbox/commit/a7c70aeb96083aa3b603512703314fdbb295a700
• https://github.com/FabianBartl/mtex-toolbox/commit/34b9776f4ce469f2ed8d428fb793a9aa768d9658
• https://github.com/FabianBartl/mtex-toolbox/commit/8fc14873c7c67c4b29a4f8d733b80253ca638e8b
• https://github.com/FabianBartl/mtex-toolbox/commit/987e8ca015aff668254cd62430674fb5fc2289d0
• https://github.com/FabianBartl/mtex-toolbox/commit/b8db10c687a2a0ae437136c17637452844e9638b
• https://github.com/FabianBartl/mtex-toolbox/commit/63c17cab7aeee4bc8afc865813265a93469ad96a
• https://github.com/FabianBartl/mtex-toolbox/commit/4aba49cf69b0fcef5027825d7e775218f20fe8a6

[FabianBartl]

not all listed / referenced

[FabianBartl]

Achtung: nicht zu viele Icons -> sonst überladen

[FabianBartl]

Home > Community-Box:

• Listen-Anstrich durch passende Icons ersetzen
• "Social-Media"-Icon-Reihe in Fußzeile #8