Restructure description logic

[lokal-profil]

In the previous version you would always get a second set of
descriptions if you have "Beskrivning" (as can be seen in the
.json file. The current solution separate the OK_to_upload and
lacking_decription checks from the decription generation.

I also changed the order of "Ort, foto" and "Händelse" in the
decription.

[mattiasostmar]

Ah, now I understand the problem better. Yes it worked:

Example file 0307.a.0001:
was:
|description = {{sv|Teotihuacans monumentalbyggnader utlagda på karta över Stockholm.
''Nyckelord:'' karta, Stockholm. }}
{{en|Images from the 1932 Sigvald Linné archeological expedition at Teotihuacán, Mexico.}}
|description = {{sv|}}
{{en|Images from the 1932 Sigvald Linné archeological expedition at Teotihuacán, Mexico.}}

is now:
|description = {{sv|Teotihuacans monumentalbyggnader utlagda på karta över Stockholm.
''Nyckelord:'' karta, Stockholm.}}
{{en|Images from the 1932 Sigvald Linné archeological expedition at Teotihuacán, Mexico.}}