Plantazoa updates for e116

[JAlvarezJarreta]

Description

• Added https were applicable (URL links have been checked to make sure nothing is broken)
• Fixed a few typos
• Corrected a few broken (internal) URL links
• Added a few pages in this layer to adapt their content to Metazoa/Plants

Views affected

New (EG) pages:

• https://metazoa.ensembl.org/info/about/legal/mirrors.html
• https://metazoa.ensembl.org/info/data/api.html
• https://metazoa.ensembl.org/info/docs/api/index.html
• https://metazoa.ensembl.org/info/website/upload/var.html

Altered pages:

• https://metazoa.ensembl.org/info/data/biomart/biomart_combining_species_datasets.html (updated content)
• https://metazoa.ensembl.org/info/data/biomart/how_to_use_biomart.html (updated content)
• https://metazoa.ensembl.org/info/genome/annotation/cross_references.html (typo)
• https://metazoa.ensembl.org/info/genome/index.html (dropped Rapid Ensembl referenced, added Ensembl Beta reference)
• https://metazoa.ensembl.org/info/about/publications.html (added missing publications)

Deleted pages:

• https://metazoa.ensembl.org/info/genome/dna_align/microarray_mapping.html

Possible complications

None.

Merge conflicts

None.

Note: Linked with PRs Ensembl/ensembl-webcode#1127, Ensembl/public-plugins#928, EnsemblGenomes/eg-web-metazoa#54, EnsemblGenomes/eg-web-plants#101.