Perform searches on indexers independently

[ShanaryS]

I've had similar issues in #564 which was because the indexer is disabled. I'm still seeing repeated searches, some that search for 0 indexers.

If a search fails on an indexer, it blocks other indexers from performing a search. This can stuck in a loop where nothing gets search due to the failed searches eating up the searchLimit.

A searchLimitIndexer would be an elegant solution as each indexer is independent, one failing should not prevent the others from searching. Since searches are already decided on a per indexer basis, this would be a natural extension.

2023-12-12 10:18:59 �[32minfo�[39m: [search] Found 4182 torrents, 3966 suitable to search for matches
2023-12-12 10:18:59 �[32minfo�[39m: [search] Limited to 10 searches
2023-12-12 10:18:59 �[32minfo�[39m: [1/10] Searching for 100 Great Science Fiction Short Shorts - Asimov.epub
2023-12-12 10:18:59 �[32minfo�[39m: [torznab] Searching 1 indexers for 100 Great Science Fiction Short Shorts - Asimov.epub (filtered by timestamps)
2023-12-12 10:18:59 �[36mverbose�[39m: [torznab] http://qserver:9696/32/api?apikey=[REDACTED]&t=search&q=100+Great+Science+Fiction+Short+Shorts+-+Asimov+epub
2023-12-12 10:18:59 �[36mverbose�[39m: [torznab] Snoozing indexers 29 with RATE_LIMITED until 2023-12-12 10:23:59
2023-12-12 10:18:59 �[33mwarn�[39m: Failed to reach http://qserver:9696/32/api
2023-12-12 10:18:59 �[34mdebug�[39m: request failed with code: 429
2023-12-12 10:18:59 �[32minfo�[39m: [2/10] Searching for 100.Yen.Love.2014.1080p.BluRay.DDP5.1.x264-PTer
2023-12-12 10:18:59 �[32minfo�[39m: [torznab] Searching 0 indexers for 100.Yen.Love.2014.1080p.BluRay.DDP5.1.x264-PTer (filtered by timestamps)
2023-12-12 10:18:59 �[32minfo�[39m: [3/10] Searching for 10000.BC.2008.1080p.MAX.WEB-DL.DDP.5.1.H.265-PiRaTeS[TGx]
2023-12-12 10:18:59 �[32minfo�[39m: [torznab] Searching 1 indexers for 10000.BC.2008.1080p.MAX.WEB-DL.DDP.5.1.H.265-PiRaTeS[TGx] (filtered by timestamps)
2023-12-12 10:18:59 �[36mverbose�[39m: [torznab] http://qserver:9696/15/api?apikey=[REDACTED]&t=search&q=10000+BC+2008
2023-12-12 10:19:36 �[32minfo�[39m: [4/10] Searching for Asimov, Isaac - Breve historia de la quimica [6558] (r1.5).epub
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for Asimov, Isaac - Breve historia de la quimica [6558] (r1.5).epub (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [5/10] Searching for 101 Dalmatians (1996) [WEBRip] [1080p] [YTS.AM]
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for 101 Dalmatians (1996) [WEBRip] [1080p] [YTS.AM] (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [6/10] Searching for 101 Dalmatians II Patchs London Adventure (2003) [1080p]
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for 101 Dalmatians II Patchs London Adventure (2003) [1080p] (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [7/10] Searching for 101.Dalmatians.1996.1080p.WEBRip.DD2.0.x264-NTb
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for 101.Dalmatians.1996.1080p.WEBRip.DD2.0.x264-NTb (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [8/10] Searching for 102 Dalmatians (2000) [1080p] [WEBRip] [5.1] [YTS.MX]
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for 102 Dalmatians (2000) [1080p] [WEBRip] [5.1] [YTS.MX] (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [9/10] Searching for 102.Dalmatians.2000.1080p.WEBRip.DD5.1.x264-NTb
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for 102.Dalmatians.2000.1080p.WEBRip.DD5.1.x264-NTb (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [10/10] Searching for Josh Waitzkin - Josh Waitzkin's Attacking Chess Aggressive Strategies and Inside Moves from the U.S. Junior Chess Champion-Simon & Schuster (1995).pdf
2023-12-12 10:19:36 �[32minfo�[39m: [torznab] Searching 0 indexers for Josh Waitzkin - Josh Waitzkin's Attacking Chess Aggressive Strategies and Inside Moves from the U.S. Junior Chess Champion-Simon & Schuster (1995).pdf (filtered by timestamps)
2023-12-12 10:19:36 �[32minfo�[39m: [search] Found 0 cross seeds from 10 original torrents

[ShanaryS]

Been using this since last year, works well.

I've made some changes to search the indexers asynchronously. Before, if a single indexer needed to perform a search, it would block all others. This is especially painful if you have thousands of torrents and add a new indexer, could easily wait a month for it to catch up(my case).

Now the searches are performed on all indexers simultaneously. Behavior hasn't changed, though I had to move around the logging for it to make sense.