fix: keep a space between overview words that span a line break

The collapsed one-line overview on the Lidarr artist, Sonarr series, and Readarr author details views replaced every line break and tab with an empty string. Words on either side of a paragraph break fused together, rendering as "20th century.She was born in Ohio".

Collapse each run of whitespace to a single space instead, and trim the result. Handling a whole run at a time keeps a Windows line ending, an indented paragraph, or a space that already precedes a line break from producing two spaces.

The overview popups are unaffected: they receive the raw text and keep their paragraph breaks.

src/models/servarr_data/readarr/readarr_data.rs

@@ -269,7 +269,7 @@ impl ReadarrData<'_> {
       overview: Some(
         "some interesting description of the author\r\n\
          \r\n\
-         He was born in Madison, Wisconsin: a city he has never really left.\r\n\
+         \tHe was born in Madison, Wisconsin: a city he has never really left. \r\n\
          \r\n\
          His first novel took him seven years to finish.\r\n"
           .to_owned(),